Which of the following is true of DNA only?

Who painted the image seen below?<br> 4002-01-02-04-00_files/i0270000.jpg

skelet666 [1.2K]

I cant access that file?

5 0

3 years ago

Read 2 more answers

A cell can only respond to signals from other cells, not from the physical environment.

jekas [21]

A cell can only respond to signals from other cells, not from the physical environment. receptor activation. The ability of a specific tissue or organ to respond to the presence of a hormone is dependent on: the presence of the appropriate receptors on the cells of the target tissue or organ.

8 0

2 years ago

Explain why the sun is important for most consumers to survive, even though

drek231 [11]

Answer:

Energy stems from the sun

Explanation:

Think about it, A plant takes energy from the sun and then a worm eats it soon after a bird eats that worm then when the bird dies its body is fed to fungi or back to plant life. Pretty much the sun is our biggest source of energy

Also The sun is our major source of heat without the sun we would freeze and perish.

8 0

3 years ago

what is the order of three genes (x, y, and z) that are located on the same chromosome, based on the following information? gene

Mekhanik [1.2K]

The recombination frequency between genes is useful to determine the distance between genes and their order in the chromosome. The correct order of genes in this chromosome is X-Z-Y.

<h3>What is the recombination frequency?</h3>

Recombination frequency refers to the probability of crossing-over events occurrence between two genes. There farther genes are from each other, the greater recombination frequency there will be.

Recombination frequencies are also used to determine the distance between genes, and if they are linked or not.

So, if we know the recombination frequencies, we can calculate the distances between the genes and figure the genes' order out.

The map unit is the distance between the pair of genes for which one of the 100 meiotic products results in a recombinant one.

1% of recombination frequency, RF = 1 Map Unit, MU = 1 centiMorgan, cM

Now let us analyze the data

Three genes ⇒ X, Y, Z.
Distance between X-Y = 17% = 17 MU
Distance between Y-Z = 9% = 9 MU
Distance between X-Z = 8% = 8 MU

When the RF is given, we already have the distance between genes.

Now, to put these genes in order, we need to look for the most distant genes. These are probably the ones placed at the extremes of the chromosomal fragment.

In this case, the most distant genes are X-Y. So,

---------X-----------------Y---------

17 MU

Then, we need to place the remaining genes, which are probably between the two extremes genes. To be sure of this position, the addition of these middle genes must equal the distance between the extreme genes.

In our example, we only have one remaining gene Z.

The distance from X to Z = 8 MU
The distance from Y to Z = 9 MU
9 MU + 8 MU = 17 MU which is the distance between X and Y (extreme genes)

-----------X-------------Z----------------------Y---------

║----8MU---║------- 9 MU -----║

║-------------17 MU ---------------║

So, according to this reasoning, the correct order of genes in this chromosome is X-Z-Y.

You can learn more about the recombination frequency at

brainly.com/question/13243739

brainly.com/question/20713958

brainly.com/question/11105396

#SPJ1

3 0

1 year ago

Cancer cells that are described as undifferentiated may also be referred to as

Eva8 [605]

Am certain that the cancer cells that are described as undifferentiated may also be called the Embryonal. Cancer cells are cells that divide continuously, forming tumors or flooding the blood with abnormal cells. A germ cell tumor is a neoplasm that is derived from germ cells. Germ cell tumors can be cancerous or non-cancerous ( undifferentiated). Germ cells normally occur inside the gonards.

5 0

3 years ago