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4 years ago

Evolution of a species could occur as a result of changes in the

Biology

1 answer:

victus00 [196]4 years ago

5 0

Options for the question have not been provided. They are as follows:

(1) DNA in muscle cells

(2) base sequences in liver cells

(3) genes in an egg cell

(4) number of chromosomes in a fetal bone cell

Answer:

(3) genes in an egg cell

Explanation:

Evolution is the change in characteristics of a species which it develops over the time. These changes can be a result of natural selection, genetic drift, founder effect etc. They are passed from one generation to another hence the alleles for them get fixed in the population.

For evolution to occur, change should take place in germ cells. Germ cells are the one which fuse to form the organisms of next generation. If there is a change in their genes, it would also appear in next generation, unlike changes in genes of somatic cells. Since egg cell is a germ cell it is the correct answer.

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Drawing a cartoon in pencil, then going back over it later with an ink pen is most similar to which biological process?

Montano1993 [528]

Given that the main reason for which an artist will retrace a drawing in pen is to correct errors and achieve a final draft, we can compare this to the biological process of DNA proofreading.

DNA proofreading is a biological process that takes place during the biosynthesis of DNA. During this time, a chain of DNA is read and a complementary chain is creating, effectively duplicating the genetic code.

During this process, DNA proofreading takes place. This is described as a process in which the DNA polymerase retraces the genetic code, detecting and fixing any errors in the synthesis before the strand is closed once again.

The fact is that both processes, despite taking place in astronomically different situations, share a final goal which is to prepare the "product" for the "final draft". This allows us to draw valid comparisons between the retracing of a cartoon and the proofreading of DNA by the DNA polymerase enzyme.

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3 years ago

Can somebody help me out with this question because I’m really confused??

Georgia [21]

Answer:

i think the answer will be uterus

Explanation:

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4 years ago

Weather balloons are often used to make measurements in which "sphere" A.Biosphere B.Exosphere C.Geosphere D.Cryosphere E.Atmosp

Ivahew [28]

I think it would be E.

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3 years ago

Study the image.

kvv77 [185]

Answer: it’s B

Explanation:

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3 years ago

How do oceanic upwellings promote the growth of microscopic plankton?

MissTica

Answer:

They bring dissolved nutrients to the surface of the ocean. They decrease the levels of oxygen at the surface of the ocean. They decrease the amount of nutrients at the surface of the ocean.

Explanation:

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3 years ago