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Vanyuwa [196]
2 years ago
7

DNA is one example of how genetics is used as evidence of evolution. Explain what this is and how it is used

Biology
1 answer:
Inessa [10]2 years ago
3 0
Breaking cells open to release the DNA.
Separating DNA from proteins and other cellular debris.
Precipitating the DNA with an alcohol.
Cleaning the DNA.
Confirming the presence and quality of the DNA.
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Upon examination, a cell is found to have twice as much DNA as the normal diploid state but is no longer in the process of repli
irina1246 [14]

The Gap 2(G2) stage of Interphase

Explanation:

In a eukaryotic cell, the cell cycle refers to both -cell growth and cell division - leading to the production of identical daughter cells. The cell cycle is basically divided into interphase (I) and mitosis (M).

The interphase, during which the cell grows and replicates its DNA takes place by the following stages – Gap 1 (G1), Synthesis (S), Gap 2(G2).

The cells grow and increase in size during the G1 period.

The G2 phase or the second gap phase the cell utilizes energy and produces necessary proteins for undergoing chromosome manipulation and other organelles and prepares the cell for mitotic cell division.

DNA replication mainly takes place in the Synthesis or the S stage of interphase with each of the chromosomes (46) is replicated.  

Due to this DNA replication in the S stage, its content is doubled (4-N DNA content) when it enters the G2 stage and all the DNA is found within a single nucleus.

6 0
2 years ago
Which best describes the purpose of science?
Artist 52 [7]
To explain the nature of things
6 0
2 years ago
A nucleotide consists of?
Setler79 [48]
A nucleotide consists of three things: A nitrogenous base, which can be either adenine, guanine, cytosine, or thymine (in the case of RNA, thymine is replaced by uracil). A five-carbon sugar, called deoxyribose because it is lacking an oxygen group on one of its carbons. One or more phosphate groups.
4 0
3 years ago
Read 2 more answers
When a kidney is cut lengthwise, three distinct regions become apparent. the outer region is light in color, while the deeper "m
Temka [501]
There are three main regions of the kidney.
<span>1.Renal cortex -  It is the outer region of the kidney which contains the renal corpuscles and the renal tubules (without the loop of Henle). It produces the erythropoietin.</span>
<span>2.Renal medulla  - It is the innermost part of the kidney which contains the renal pyramids.</span>
<span>3.Renal pelvis  -  It is the region that collects urine from the nephrons, thus it contains the place where ureter leaves the kidney.</span>
6 0
3 years ago
I need help please!!
Sliva [168]

Answer:

Prokaryotes and Eukaryotes are two types of cells with similarities and differences. Eukaryotes are plant cells and animal cells. They are mostly found in multi-cellular organisms. Prokaryotes are usually single-celled organisms and have a tail. Those are the examples that I remember, but there are way more similarities and differences. I hope this helped!!

3 0
2 years ago
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