Please help lost on this

Please Help Lost On This

Answers

Answer 1

Based on the phenotypes obtained from the cross;

a. The expected proportion of pink flowers among the offspring would be 50%.

b. The expected proportion of pink flowers among the offspring would be 50%, while the expected proportion of white flowers would be 50%.

What are the phenotypes for the given crosses?

The phenotypes for the given crosses are determined as follows:

a. R₁R₂ x R₁R₂ = R₁R₁ , R₁R₂, R₁R₂, R₂R₂

The offspring of this cross would be 2/4 heterozygous R₁R₂, which would result in pink flowers. The expected proportion of pink flowers among the offspring would be 50%.

b. R₁R₂ x R₂R₂ =  R₁R₂,  R₁R₂, R₂R₂,  R₂R₂

The offspring of this cross would be either heterozygous R₂R₂ or homozygous R₂R₂, which would result in either pink or white flowers, respectively. The expected proportion of pink flowers among the offspring would be 50%, while the expected proportion of white flowers would be 50%.

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Complete question:

Red-flowering snapdragons are homozygous for allele R¹. White-flowering snapdragons are homozygous for a different allele (R2). Heterozygous plants (R¹R²) bear pink flowers. What phenotypes should appear among first-generation offspring of the crosses listed? What are the expected proportions for each phenotype?

a. R¹R2 x R1 R2 b. R¹R2 x R2R2


Related Questions

In fruit flies, brown bodies are dominant to black bodies. cross two heterozygous fruit flies. determine the phenotypic and genotypic ratios. then determine how many fruit flies, if 200 are born, will have black bodies

Answers

Answer:Cross a black fruit fly with a heterozygous fruit fly. Determine the phenotypic and genotypic rations of their potential offsping

Explanation:

help help helppp!
What is the main strategy birds use to maintain their body temperature?
A-using energy from food to keep their bodies warm
B- nesting in warm, sunny location
C- eating warm food on cold days
D- spending the day in the shade of trees

Answers

The main strategy birds use to maintain their body temperature is A- using energy from food to keep their bodies warm.

Birds are endothermic, which means they generate their own body heat. They have a high metabolic rate and generate heat by breaking down food. This heat is then used to maintain their body temperature. To conserve this heat, birds have adaptations such as feathers, which provide insulation, and a high surface-to-volume ratio, which reduces heat loss. Birds can also fluff up their feathers to create air pockets that trap heat close to their bodies.

What is cyanosis? Describe several physical and/or chemical factors that might create cyanosis in a patient and how cyanosis can be reversed.

Answers

Cyanosis is characterized by bluish discoloration of skin and mucous membranes. Cyanosis is usually a sign of an underlying condition rather than being a disease in itself. The most common symptoms of the condition are bluish discoloration of the lips, fingers, and toes.  

Cyanosis can be evident at birth due to the presence of a heart malformation that permits blood that is not fully oxygenated to enter the arterial circulation. Cyanosis can also appear at any time later in life and often accompanies conditions in which lung function is compromised (resulting in an inability to fully oxygenate the blood) or conditions in which the heart's pumping function is compromised. The presence of abnormal forms of hemoglobin or other abnormalities of the blood cells can also sometimes cause cyanosis. The medical term for lowered oxygen level is hypoxia, the term anoxia refers to the absence of oxygen. Pseudo cyanosis is the appearance of cyanosis that is not associated with reduced oxygen delivery to the tissues. Most causes are related to the ingestion of metals (such as silver or lead) or drugs/toxins.

 

which process results in greater genetic diversity in offspring

Answers

Answer:

Genetic variation is increased by meiosis. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during pro phase I.

Answer:

Genetic variation is increased by meiosis

Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I.

Explanation: Hope this helps. Mark me brainliest! :))

What is definite growth

Answers

A form of growth where a maximum size is reached beyond which there is no further increase, i.e. growth is limited.

5. While there are five muscle groups most commonly targeted in resistance training, how many muscle groups are usually targeted by one exercise?
O A. One or two
B. Four or five
OC. Two or three
D. Three or four

Answers

Answer: C. Two or three

Explanation:

What is Kobe B. Bryant's blood type?
a. A
b. B
c. AB
d. O

Answers

There is no publicly available information about Kobe Bryant's blood type.

I'm afraid there is no public info on this

Drag and drop to match the correct mitosis phase name and description to the
corresponding image that shows the cell in that stage of cell division.
DNA condensing. In
addition, the nuclear
envelope just begins
to break down
The nuclear
membrane is gone.
The chromosomes
line up in the center.
Centrioles move to
opposite ends of cell.
2
Sister chromatids are
pulled apart by
microtubules.
3
The nuclear
membrane reforms
around the
chromosomes,
chromosomes begin
to unwind and
spread out again.
4
Telophase
Prophase
Anaphase
Metaphase
Match the correct mitosis phase name and description to the corresponding image that
shows the cell in that stage of cell division.

Answers

Answer:

Explanation:

Prophase - DNA condensing. In addition, the nuclear envelope just begins to break down.

Metaphase - The chromosomes line up in the center. Centrioles move to opposite ends of the cell.

Anaphase - Sister chromatids are pulled apart by microtubules.

Telophase - The nuclear membrane reforms around the chromosomes, chromosomes begin to unwind and spread out again.

Which words from the article help the reader to understand the importance of a special habitat?

OPTIONS

Answers

Answer:

Since there is no specific article mentioned in the question, I will provide a general answer.

The importance of a special habitat can be conveyed through various words and phrases depending on the context. Some examples of words and phrases that may help the reader understand the importance of a special habitat are:

Unique

Endangered

Fragile

Ecosystem

Biodiversity

Rare

Sensitive

Threatened

Niche

Keystone species

Habitat loss

Conservation

Preservation

Sustainability

Irreplaceable

These words and phrases may be used to describe the ecological, scientific, or cultural value of a special habitat and emphasize the need to protect it from human activities and other threats that may cause harm or destruction.

I Hope This Helps!

Define the definition: Locus

Answers

Answer:

The location of a specific gene on chromosomes.

give three functions of a fruit

Answers

Answer:

please make me brainalist and keep smiling dude I hope you will be satisfied with my answer

Explanation:

A fruit protects the immature seeds from animals and extreme climatic conditions. It stores food material. It attracts animals that help in dispersing or scattering the seeds to distant places.

banana
Boost your digestion and heart health

Quarter 1 Summative Assessment

Answers

Answer: ik this might not help but you have to put the specific question you want answered in or no one can help you

Explanation:

Look at the food web diagram, which MOST LIKELY represents X
A) corn
B) eggs
C) foxes
D) worm

Answers

Corn-(A)because sheep don’t eat eggs. humans don’t eat foxes. humans don’t eat worms and neither do sheep

A student drew the following diagram to model the structure of an Australian
grassland community. Kangaroos are herbivores. In which level of the
student's model would you find kangaroos?
A. Level 3
B. Level 4
C. Level 1
D. Level 2

Answers

Based on the typical structure of a food web or ecological community model, kangaroos would most likely be found in Level 3, which usually represents the secondary consumers in a food chain or web.

option A.

In which level of the student's model would you find kangaroos?

This means that kangaroos feed on primary consumers such as grasshoppers or small mammals that eat plants.

Level 4 typically represents the top predators or tertiary consumers in the community, which may include large carnivorous animals that eat other consumers.

Levels 1 and 2 usually represent the producers (e.g., plants) and primary consumers (e.g., herbivorous insects) in the community, respectively.

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Starting billions of years ago, algae lowered the. atmosphere. levels in the A. carbon dioxide D. oxygen C. ozone B. methane​

Answers

Explanation:

ozone probably, I think

1. How far will a car travel at 50 m/min in 25 min?
2. How far will a car travel at 50 km/h in 7 h?
3. How long will a ball roll 400 m at 70 m/min?
4. If a car travels from 3 m/s to 30 m/s in 3 seconds, what is the car's average acceleration?

Answers

Answer:

1. 1,250 miles

2. 350 km

3. 5.71 min

4. 10 m/s

Explanation:

50 m/min * 25min = 1250 miles

50 km/hr * 7 hrs = 350 km

Question was confusing, but if I interpreted it correctly...

400 m ÷ 70 m/min = 5.71 min

3 m/s to 30 m/s in 3 sec would be an increase of 10 m/s

Much like auxin in a stem causes it to grow upward, the auxin in which structure makes it grow downward?

Responses

flowers

roots

gametes

leaves

Answers

Answer :Roots

Explanation: Gravitropism is based on the redistribution of auxin in the elongation zone of the developing root. If the root is not growing vertically downward, then auxin accumulates in the lower parts of the root, inhibiting cell elongation and causing the root to bend in the direction of gravity.

Of the following, which agricultural operation increases carbon sequestration?
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices

feedlots in CAFOs

poultry houses

cow-calf operations

pens in long barns

Answers

Poultry houses. When carbon is stored in materials like subsurface geological formations or rocks, it is known as geological carbon sequestration.

This method, which is entirely artificial or "direct," is an efficient means of reducing emissions caused by activities like manufacturing or construction. Recent developments demonstrate that carbon can be sequestered more successfully and on larger proportions.

One of the most significant issues facing the poultry industry in all facets of production is air pollution in the environment where chickens are kept. Ammonia is a gas that poultry houses may release, and it is potentially deadly. If this gas is present in the air at levels over the safe threshold (15 ppm), terrible things will happen. Four primary gases made up the majority of the greenhouse gases released from poultry houses (carbon dioxide, nitrous oxide, methane and hydrogen sulphide).

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How is the cell in Diagram A effectively using its resources?
Since lactose is present, the repressor protein will
begin transcription.
ORNA polymerase is transcribing the genes because
actose is present.
The cell continually produces the enzymes needed to
break down lactose.
Since lactose is present, the repressor protein will
break down lactose.
segment of DNA
pressor probin
RNA polym

Answers

Based on the information provided, it is most likely that the correct answer is: "The cell continually produces the enzymes needed to break down lactose."

How does a lac operon work?

This is because the diagram likely represents the lactose operon in bacteria, which is a group of genes that work together to enable the bacteria to use lactose as an energy source.

When lactose is present, it binds to the repressor protein, causing it to release from the operator region on the DNA. This allows RNA polymerase to bind to the promoter region and initiate transcription of the genes needed to break down lactose.

Once these genes are transcribed and translated into enzymes, the cell can continually produce them as long as lactose is present, allowing it to efficiently use the available resources for energy production.

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DNA found at a crime scene is cut using restriction enzymes and then ran through a gel using electricity. The bands formed on the gel are compared to bands formed 5 suspects to determine which DNA matches.

(A) Genetic Engineering
(B)Artificial Selection
(C)Gel Electrophoresis

Answers

C) Gel electrophoresis. To compare DNA samples taken from a crime scene and a suspect, forensic analysts employ the laboratory process known as DNA fingerprinting.

Despite the fact that 99.9% of the human genome is the identical throughout the population, individual differences can be seen in the remaining 0.1% of human DNA. These changeable DNA sequences, also known as polymorphic markers, can be electrophoresed on a DNA gel to create distinctive DNA banding patterns on an agarose gel. Individuals can then be distinguished or correlated using the DNA bands.

You will be tasked with examining the DNA of two suspects that were identified from a crime scene using human DNA evidence (such as skin cells or hair).

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what does it mean if my bowl movements are neon green and shiny? I have a normal diet so I'm not sure please help!​

Answers

Answer:

Green stool often occurs with diarrhea, so drink plenty of fluids and seek immediate medical attention if you or your child becomes dehydrated. So this means that you have diarrhea. Call a doctor, if you have green poop more than a few days.

Explanation: Hope this help and hope you fell better!

differenciate between population density and pupulation distribution

Answers

Population density is an overall measure of the number of people living in a given area, typically expressed as the number of people per square mile or per square kilometer. It is calculated by dividing the total population of an area by the total land area.

Difference between population density and population distribution

Population distribution is the pattern of how people are dispersed over a given area. It shows where people live and how densely populated an area is. It is usually measured by looking at the geographic locations of people and plotting them on a map.

Population density is a measure of the number of people living in an area, usually expressed as people per square mile or per square kilometer. Population distribution is the pattern of how people are dispersed over a given area. It is usually measured by looking at the geographic locations of people and plotting them on a map. Population density and population distribution are important to consider when looking at an area's population, as they can help determine how densely populated an area is and where people are living.

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Arable land is used to grow crops and feed livestock.

True
False

Answers

Answer:

True.

Explanation:

Arable land is defined as land that is suitable for farming, and is typically used for the production of crops and livestock feed. The term "arable" is often used to describe land that has been cultivated, plowed, and is ready for planting. This land is usually nutrient-rich and capable of supporting a variety of crops such as wheat, rice, corn, and soybeans, as well as forage crops for livestock such as alfalfa, clover, and grasses.

Farmers rely on arable land to produce food and feed for animals, and this land is a crucial resource for meeting the world's growing demand for agricultural products. Arable land is a finite resource, and it is important to use it efficiently and sustainably to ensure that future generations have access to the resources they need to produce food and feed for a growing global population.

Why might it be helpful for an organism to have different types of connective tissue?

Answers

Answer:

a

Explanation:

becusw it ahfhhjddjdudjsjejdjdjdjdhshssjs

The _____ refers to the overarching 1930s legislation that deals with many aspects of the production and sale of farm-raised commodity crops.
Please choose the correct answer from the following choices, and then select the submit answer button.
Answer choices
Federal Farm Loan Act
Agricultural Act
Sarbanes-Oxley Act
U.S. Farm Bill

Answers

The correct answer is the "U.S. Farm Bill."

What is U.S farm bill?

The U.S. Farm Bill is a comprehensive legislation that is passed by the United States Congress every five to seven years to address a wide range of issues related to agriculture, rural development, conservation, and nutrition. The first Farm Bill was enacted in 1933 during the Great Depression, and since then, it has been amended and revised numerous times to reflect the changing needs of the agricultural sector.

The Farm Bill is a significant piece of legislation that impacts the lives of millions of people across the United States, including farmers, ranchers, consumers, and rural communities. It provides funding for a range of programs, such as crop insurance, conservation, agricultural research, rural development, and nutrition assistance programs, including the Supplemental Nutrition Assistance Program (SNAP).

The Farm Bill also includes provisions related to the production and sale of commodity crops, such as wheat, corn, soybeans, and cotton. These provisions include subsidies and price supports that aim to stabilize commodity prices, promote agricultural production, and ensure a reliable supply of food and fiber.

In conclusion, the U.S. Farm Bill is a crucial piece of legislation that provides support to the agricultural sector and addresses a wide range of issues related to rural development, conservation, and nutrition. Its provisions related to commodity crops are just one of the many aspects of this comprehensive legislation.

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PLS HELP I GIVE BRAINLIEST
Fill a clear bin (shoe box size works best) about half way with dirt. The dirt can be from outside or a garden supply store.
Lightly moisten the dirt by sprinkling water over it.
Place about 5 worms in the bin. The worms can be dug up from outside or from a bait store.
Observe the worms, in a period of 2,5,10 minutes and 1 and 2 days

What do the worms do when first placed in the dirt.
After 2 minutes where are the worms?
After 5 minutes where are the worms?
After 10 minutes where are the worms?
When you return after one day what do you notice?
When you return after two days what do you notice?

Answers

When first placed in the dirt, the worms may burrow into the soil or crawl around on the surface.

Exploration.

Less crawling around.

Motionless on the soil.

Tunnel creation.

Visible casting.

What are the likelihoods of worm behavior?

After 2 minutes, the worms may still be exploring their new environment or starting to burrow deeper into the soil. After 5 minutes, the worms may have burrowed deeper into the soil or be crawling around the surface less frequently. After 10 minutes, the worms are likely to have burrowed deeper into the soil or remain motionless on the surface.

When returning after one day, you may notice that the worms have created tunnels in the soil and have consumed some of the organic matter in the soil. They may also have deposited their castings, which are rich in nutrients. When returning after two days, you may notice that the worms have continued to create tunnels and consume organic matter, and their castings may be more visible.

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modified viruses can be used to introduced to modify genes into human cells true or false 

Answers

Answer:

True. Modified viruses can be used as a tool to introduce desired genes or modifications in human cells, a technique known as gene therapy. However, this is a highly specialized field and must be performed under strict laboratory conditions by trained professionals to ensure safety and efficacy.

3. What muscle is known as the calf muscle?
O rectus femoris
O internal oblique
O tibialis anterior
O gastrocnemius

Answers

gastrocnemius

Explanation:

Your calf muscle consists of two main muscle the gastrocnemius and the soleus. Because these two muscles come together above your heel and attach to the Achilles tendon, some providers refer to the gastrocnemius and soleus as one large muscle with two sections.

My mother has blood type AB and my father has blood type O.
If I have blood type O, which of the following is the likeliest:
A. My father is not my father
B. I was adopted

Answers

My mother has blood type AB and my father has blood type O.If I have blood type O, which of the following is the likeliest: A. My father is not my father

What if the father's name is O and the mother's name is AB?

If the father has the blood group O, his genotype is IOIO or (ii). Because the mother is of blood type AB, her genotype is IAIB. Combinations of these two groups might result in offspring with genotypes IAIO or IBIO, giving them blood groups A or B, respectively.

The father's genotype, or possible genes he may pass on, is O O, while the mother's is A B. The children's genotypes would be AO & BO.

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What determines genotype in real life?

Answers

Answer:

DNA sequencing and other methods can be used to determine the genotypes at millions of locations in a genome in a single experiment.

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