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kodGreya [7K]
3 years ago
15

The diagram above illustrates which of the following processes?

Biology
2 answers:
Sonbull [250]3 years ago
6 0
Option A Base pair substitution
krok68 [10]3 years ago
6 0

Answer:

pretty sure its crossing over since they are exchanging

Explanation:

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Research shows that the average height of all Earth's oceans is increasing over time. Which of the following is a possible cause
Aneli [31]

Answer:

polar ice caps are melting

8 0
2 years ago
An isolated African canyon community in which cheetahs and leopards consume only impala antelopes is being observed. In a hypoth
ss7ja [257]

Answer:

<em>The population of the impala antelopes will decline rapidly.</em>

Explanation:

The cheetahs and leopards are the predators of the impala antelopes. If the population of the predators arises, this means there will be more predators feeding on the prey. As a result, the population of the prey will decline. Hence, in the above scenario, the population of the impala antelopes will decline rapidly as it will have more number of predators. The population of the cheetahs might also start to decline if it does not move on to another source of food.

8 0
4 years ago
Researchers are studying the last two phases of mitosis, anaphase and telophase, in actively dividing cancer cells. Different fl
Zigmanuir [339]

Answer: Telophase

Explanation:

Mitosis is a process of division of the nucleus, which consists of the equal sharing of genetic material (DNA). This type of division occurs in somatic cells and the next step after mitosis is the division of the cytoplasm (cytokinesis), to form two genetically identical daughter cells.

First, it is necessary for the genetic material to be duplicated, so that each newly created cell receives the correct number of chromosomes (structure smade up of DNA). To separate these chromosomes, during <u>anaphase</u>, the chromosomes are anchored to the spindle microtubules and aligned at the metaphase plate (the center of the cell). The sister chromatids (two copies of a chromosome) are separated by the microtubules anchored to their kinetochores as they disassemble, heading toward the respective centrosomes (an organelle in which microtubules grow). Then, the microtubules pushing the centrosomes (and the set of chromosomes associated with them) toward opposite ends of the cell. Since it is necessary for the chromosomes to go to the poles of the cell, new cells are formed. So in this step, <u>it is necessary that the nuclear envelope is not present (otherwise, the nucleus could not divide).</u>

During <u>telophase</u>, microtubules not attached to kinetochores continue to elongate, further stretching the cell. The sister chromosomes are each associated with one of the poles, and as <u>the division of the nucleus is completed, the nuclear envelope reforms around both chromosome sets</u>,<u> using fragments of the nuclear envelope of the original cell.</u> The chromosomes are decondensed back into chromatin and only the cytokineses remain.

The fluorophore labels proteins that are part of the nuclear membrane and as telophase forms back, these proteins are expressed more. So, since the proteins of the nuclear envolope are labeled with a green fluoroforum, the green fluorescence would be most intense during telophase. Therefore there will be more intensity of green color compared to anaphase where the nuclear membrane is disintegrated.

4 0
3 years ago
Choose the correct sequence for sexual reproduction in flowering plants :- (I)pollination, gametogenesis
MatroZZZ [7]

Answer:

its pollination but its not gametognesis I might be wrong but I'm trying my best so I hope dis helps :3

7 0
4 years ago
Replicate the following DNA sequence : ATCGCAATT
Gnom [1K]
It’s TAGCGTTAA they are complementary
3 0
3 years ago
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