DNA sequences can act as "tape measures of evolution." Some highly-conserved regions of the human genome (similar to comparable regions in other species) don't code for proteins. Why?
1. Such regions coded for proteins in genomes of distant human ancestors, but over time they became noncoding; however, conserving their sequence remained unchanged.
2. Such regions play a significant role in gene regulation. That is why they remain conservative under the influence of natural selection.
3. Such regions are the sites of DNA recombination. They should remain conservative to provide an accurate recombination process during cell division.
4. Such regions remain conservative because the mutation rate differs along the genome. In other words, such regions remain conservative accidentally.

Answers

Answer 1

Answer:

2. Such regions play a significant role in gene regulation. That is why they remain conservative under the influence of natural selection.

Explanation:

Within the genome there are many non-coding regions that control the expression of master developmental genes such as, for example, Hox major transcription factors (TFs) in animals and MADS-box TFs in plants. These gene regulatory regions (e.g., promoters and enhancers) are generally evolutionarily conserved within certain taxonomic groups. In consequence, such non-coding regions are well known to be conserved and interact in a sequence-specific manner with major transcription factors in order to regulate developmental pathways.


Related Questions

Most leopards are golden in color with large, circular black spots to provide camouflage. There is one gene that controls the amount of pigments produced by a cell in order to create that color. A mutation on that gene can have any of the following effects. Which is the most likely result of a mutation if the leopard lives in a dense forest?
a white leopard, with albinism
a normal colored leopard
a black leopard, with melanism
no leopard, it would not survive the mutation

Answers

A black leopard, because it can better blend in with its surroundings

The eyespot of a euglena is damaged. How will this affect the organism's basic functions?
A The euglena will lose its flexibility
B. The euglena will be unable to reproduce.
C. The rate of photosynthesis in the euglena will be reduced.
D. The ability of the euglena to move away from light will be reduced.

Answers

C, just stole the answer from some one else asking it.

Which best summarizes the composition of the surface of Earth? NEED HELP PLEASE THIS IS DUE TODAY!!!!
A.
Three-fourths of Earth’s surface is land.

B.
One-fourth of Earth’s surface is water.

C.
Earth’s surface contains more land than water.

D.
Earth’s surface contains more water than land.

Answers

Answer:

D

Explanation:

Because earths surface is 29% land, and 71% water

why do people like sparkling water?

Answers

Answer:

maybe they think it will make them magical?

Explanation:

would you expect a plant to produce more oxygen on a cloudy day or a sunny day? explain

Answers

Answer:

You would expect a plant to produce more oxygen on a sunny day because there are more sun rays available to plants so photosynthesis is easier to maintain, as well as oxygen production.

I need this ASAP it’s on a.p.e.x

Answers

The correct answer is C. Gardeners choose which plants they let reproduced based on the plant traits.

Explanation:

In general, selective breeding involves the intervention of humans in the reproduction of species, this includes mainly plant and animal species. Moreover, in selective breeding, humans choose which specific species or individuals reproduce to favor certain traits. For example, a farmer might allow only the biggest cows to reproduce because this will lead to bigger calves. In this context, the option that shows selective breeding is C because this shows the intervention of humans in reproduction by selecting the individuals that will reproduce.

Describe all the tissues and cell types that are found in a leaf and describe how these individual parts work together to accomplish processes of photosynthesis.

Answers

Explanation:

While individual plant species are unique, all share a common structure: a plant body consisting of stems, roots, and leaves. They all transport water, minerals, and sugars produced through photosynthesis through the plant body in a similar manner. All plant species also respond to environmental factors, such as light, gravity, competition, temperature, and predation.

please answer this urgent ​

Answers

Answer:

i think its a turnip because of its appearance

i believe this is a radish it looks completely similar to one

Astrology, look at the screenshot

Answers

Answer:

the day would get shorter.

hope it helps.

Answer:

year would get longer

Explanation:

Explain the role that hooved animals, such as cows, play in regenerative farming.

Answers

Answer:

I hope this helps

Explanation:

As animals move, their hooves break up the soil, compacting inedible plants and allowing nutrients and sunlight to new plants—essentially speeding up the building of soil organic matter, with crushed leaves and stalks creating a natural mulch. This better equips the soil for germinating seeds.

Which part of the brain stem controls the heart rate and respiratory rate?
pons
thalamus
medulla oblongata
midbrain

Answers

Answer:Medulla

Explanation:

Answer:

Medulla Oblongata

Explanation:

The primary role of the medulla is regulating our involuntary life sustaining functions such as breathing, swallowing and heart rate. As part of the brain stem, it also helps transfer neural messages to and from the brain and spinal cord. It is located at the junction of the spinal cord and brain.

Does anyone have gce o levels biology matters 2nd edition workbook answers?​

Answers

no I don't have it as I am studying in 5th grade

Why can the rough endoplasmic reticulum produce proteins and the smooth endoplasmic reticulum cannot?

Answers

Answer:

Because there are ribosomes attached on the surface of rER which is the site of protein synthesis whereas sER do not possess of any ribosomes.

A
B
5. What is an extinct species? sc.7.L.15.3
a species that blends in easily with its
environment
a species that resembles another species
a species that was unable to adapt and
died out
a species that is bred for specific
characteristics
Copyright © McGraw Hill Education
D

Answers

Answer: A species that was unable to adapt and died out

Explanation: Good luck! :D

What are the potential advantages and disadvantages of a major shift from the hard or traditional path of energy development to the soft or visionary path?

(These were the corresponding textbook pages, if needed) Please read the following from the textbook Environmental Science:
7th Edition - Chapter 17
9th Edition - Chapter 14

Answers

Answer:

Advantages of following the soft path, the argument here is alternative sources of power such as hydropower, geothermal energy , wind energy , and photovoltaic cells must be developed. This provides a alternative source to remain in a healthy environment and also function as the society we currently live in using the hard path.  Disadvantages of following the hard path result with future generations fearing over the irreversible damage of climate change and the damage done to our atmosphere. The hard path argue that we should continue to operate in the future as we have in the past, except more efficiently. This is close to impossible and will only continue the negative effects the hard path( the path we have been following) results in. The major shift determines the outcome of this world, the futures worries or reliefs and ultimately the survival of humans.

Explanation:

A scientist is studying a worm. It is three millimeters long and pointed at each end. The worm is unsegmented and has only male reproductive structures.

Which kind of worm is the scientist most likely studying?

a tapeworm
a flatworm
a roundworm
an earthworm

Answers

Answer:

i think the answer is c roundworms

Explanation:

i know im right becausee i made a 90% with this being right

Answer:

a roundworm

Explanation:

I got the answer right on quiz .

Surface mining is less dangerous and more profitable than subsurface mining

Answers

Answer:

Surface mining is the extraction of mineral and energy resources near Earth's surface by first removing the soil, subsoil, and overlying rock strata. ... Surface mining disturbs the land more than subsurface mining, but subsurface mining is more expensive and dangerous.

Explanation:

Which organism would look most like organism

Answers

Answer:

the last answer

Explanation:

because f,g,h both come from a so you can be sure

How is fish adapted? Write any two adaptational characters of them.​

Answers

1.Grew gills
2.Grew tails

Which of the following is a macronutrient?
A) iron B) boron C) Calcium D) Manganese

Answers

C. calcium is your answer

Offline, create a complete pictogram that represents (1) the various sources of energy; (2) the percentage of global consumption for each as shown in the video; and (3) what each source is used for (electricity, transportation, heat). Use the illustration from the video as a guide.

Answers

Answer:

Solar energy, geothermal energy, wind energy, hydropower, nuclear and fossil fuels

Explanation:

Various sources of energy are solar energy, geothermal energy, wind energy, hydropower, nuclear and fossil fuels. The various sources of energy consumption for the generation of electricity was 41% produce from coal, 22% natural gas, 11% nuclear, 16% hydro, 6% from other sources such as solar, wind, geothermal, biomass, etc and 4% from oil.

4. What domain name should replace the question mark in this chart?
5 points
Unicellular Protozoa
Uni/multicellular
algao
Multicollular
heterotroph
cell walls chitin
?
Multicoulluar
autotroph
cell walls
of cellulose
Multicellular
heterotroph
Lack cell walls
O a. Archaea
b. Bacteria
O c. Eukarya
O d. Monera

Answers

Answer:

C. Eukarya

Explanation:

What layer of the Earth does the upper surface of the cross-section represent? Group of answer choices Inner Core Outer Core Mantle Crust

Answers

Answer:

Hello! Your answer is...

The lithosphere is the rocky outer part of the Earth. It is made up of the brittle crust and the top part of the upper mantle. The lithosphere is the coolest and most rigid part of the Earth. The crust is the layer that you live in. The Outer and Inner Cores are hotter. The temperatures of the crust vary from air temperature on top to about 1600. The asthenosphere is the part of the mantle that flows and moves the plates of the Earth.

Explanation:

Hope this helps you! I'm new, but am really smart and nice. Hope you enjoy your time on brainly!

The crust of the Earth, the uppermost layer visible in a cross-section of the planet, is halfway through at this point. The crust, which only accounts for around 1% of the Earth's total volume, is made up of igneous, metamorphic, and sedimentary rocks.

What is the upper surface of the cross-section of Earth?

The rocky exterior of the Earth is known as the lithosphere. It is composed of the uppermost layer of the upper mantle and the brittle crust. You live in the crust of the earth. It is hotter in the outer and inner cores.

The crust varies in temperature from the top air temperature to roughly 1600. The Earth's tectonic plates are moved by the asthenosphere, a region of the mantle.

Therefore, Mantle Crust layer of the Earth does the upper surface of the cross-section represent.

Learn more about Earth here:

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What are some other biotic and abiotic factors that may influence the mouse and hawk populations?

Answers

Answer:

Biotic factors that a population needs include food availability. Abiotic factors may include space, water, and climate.

The carrying capacity of an environment is reached when the number of births equal the number of deaths.

A limiting factor determines the carrying capacity for a species.

PLZZ HELP IM DOING A UNIT ASSESMENT!!!!
What types of cells would contain cell walls and what types of cells would contain a cell membrane?

Answers

They have walls plants have walls

Answer:

I agree with the other person

have a good day :)

Explanation:

what does dna have a high concentration of

Answers

Answer:

Nucleotides

Explanation:

DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases. To form a strand of DNA, nucleotides are linked into chains, with the phosphate and sugar groups alternating

7._________________________ lines your digestive tract and blood vessels. It moves food and blood through your body.

smooth muscle
skeletal muscle
cardiac muscle

Answers

Answer:

Smooth Muscle

Explanation:

In the digestive tract it's called the muscularis mucosa.

What differentiates Hela cells from other human cells?

Answers

Answer:

a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

Explanation:

The main difference between Hela cells from other human cells is that a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

What happens when the involvement of hela takes place?

The involvement of hela made to the developing field of genetics is a lot was educated about cell reproduction, DNA and mapping genetics. The hela cells prepared them ideal for use in the polio vaccine trials because they were more liable than other cultured cells.

Cancer cells such as Hela cells escape to normal cell cycle by mutations that lead to the misexpression and/or overexpression of regulatory molecules (e.g., cyclins and cyclin-dependent kinases) and faulty checkpoint control of the cell cycle.

The control of the cell cycle depends on 1-cyclins and cyclin-dependent kinases (CDKs) that regulate the cell cycle by a cascade of protein phosphorylations and 2- a group of checkpoint controls that monitor the completion of critical cellular events.

Therefore, The main difference between Hela cells from other human cells is that a normal cell contains 46 chromosomes whereas HeLa cells contain 76 to 80 (ref) total chromosomes, some of which are heavily mutated (22-25), per cell.

Learn more about chromosomes on:

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what is the genotype for: A man normal for blood clotting:

Answers

Answer:

Genotypes: A man with hemophilia is XhY where h = hemophilia gene and H = the normal gene. ... Her genotype must be: XhXH and NOT XHXH We can use a Punnett square to show the probability of a daughter or son having hemophilia.

What is NOT TRUE about the cell membrane
Phospholipid bilayer
It controls what enters and leaves the cell
Semipermeable
Contains digestive enzymes

Answers

Caca is the best answer right now
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