why are junk DNA “not so useless after all?”

Answers

Answer 1

Explanation:

Junk DNA, also known as non-coding DNA, was once thought to be useless or irrelevant because it does not contain instructions for making proteins, which are the building blocks of cells. However, recent research has shown that junk DNA plays important roles in regulating gene expression and controlling cellular processes.

For example, some regions of junk DNA contain regulatory elements called enhancers and silencers, which can activate or repress nearby genes. Other regions of junk DNA contain non-coding RNA molecules that can affect gene expression by interacting with other RNA or proteins. Junk DNA can also act as a buffer to protect important genes from mutations or chromosomal rearrangements.

Additionally, scientists have discovered that some types of junk DNA have been conserved throughout evolution, suggesting that they have important functions that have been maintained over millions of years. For example, transposable elements, which are mobile pieces of DNA that can move around the genome, have been shown to play important roles in gene regulation, genome organization, and evolution.

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Related Questions

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:

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.

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 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

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.

Define the definition: Locus

Answers

Answer:

The location of a specific gene on chromosomes.

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

Answers

Answer:

a

Explanation:

becusw it ahfhhjddjdudjsjejdjdjdjdhshssjs

2.05b thinking questions

Answers

The sea urchin is a slow-moving creature with a distinctive look. Its numerous sharp spines serve as an adaption to deter many possible predators. The correct option to this question is D.

What further differences do urchins have that might serve as survival adaptations?They have evolved a sharp beaked mouth, resembling the beak of a parrot, as an adaptation to this physical limitation. Its incredible camouflage skills for hunting prey and avoiding predators is another adaption.Purple sea urchins have developed lengthy spines that can extend up to half the width of their bodies, making some of them 3–4 inches across. These spines are efficient in discouraging predators who might consider this pincushion-shaped mammal to be an unappealing meal source.

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What is a petrified fossil and how are they formed?

help me plss

Answers

Answer:

Petrification (petros means stone) occurs when the organic matter is completely replaced by minerals and the fossil is turned to stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals.

Petrification occurs when the organic matter is completely replaced by minerals and the fossil is turned too stone. This generally occurs by filling the pores of the tissue, and inter and intra cellular spaces with minerals, then dissolving the organic matter and replacing it with minerals.

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.

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:

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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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.

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.

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.

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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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 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!

What are the effects of dam
removal on a river and its
watershed? of water does

Answers

Dam removal can affect water quality through the downstream transport of sediment-bound contaminants (e.g., organic substances and heavy metals) and the alteration of biogeochemical cycles.

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.

Write only 3 letter abbreviations in capital letters for the amino acid in each box

Answers

ALA - Alanine

ARG - Arginine

ASN - Asparagine

ASP - Aspartic acid

CYS - Cysteine

GLN - Glutamine

GLU - Glutamic acid

GLY - Glycine

HIS - Histidine

ILE - Isoleucine

LEU - Leucine

LYS - Lysine

MET - Methionine

PHE - Phenylalanine

PRO - Proline

SER - Serine

THR - Threonine

TRP - Tryptophan

TYR - Tyrosine

VAL - Valine

What are amino acids?

Amino acids are organic compounds that are used to construct proteins. They are composed of an amino group (-NH2), a carboxyl group (-COOH), and a side chain (R group), all attached to a central carbon atom (alpha carbon). There are 20 different amino acids that can be found in proteins, each with a different side chain, which gives them unique chemical properties.

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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

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:

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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What feature of Earth's surface is discussed in this box?

Answers

Answer:

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

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!

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.

The chemical bonds holding nucleotides together within a DNA strand are weaker than those holding the two strands of DNA together true or false 

Answers

False the chemical bonds which holds two strands of dna together are called hydrogen bonds
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