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aliya0001 [1]
3 years ago
12

Which of the following is true?

Biology
1 answer:
Arlecino [84]3 years ago
4 0

During meiosis but not during mitosis, which of the following is true? __.

A haploid gametes are produced that are identical in their allelic composition

B the cytoplasm divides

C chromosomes line up in the center of the cell during metaphase

D genetic variation among the daughter cells is increased

E two identical daughter cells are produced

Answer:

D. genetic variation among the daughter cells is increased

Explanation:

Meiosis is a process where a single cell divides twice to produce four cells containing half the original amount of genetic information. Meiosis occurs in germ cells, as a result; genetic variation among the daughter cells is increased. These cells (germ cells) are our sex cells – sperm in males, eggs in females.

In meiosis, the haploid gametes that are produced are not identical in their allelic composition.

In prophase 1, the chromosome pair up.

During metaphase, The chromosome pairs line up next to each other along the center (equator) of the cell.

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What is prothrombin?a.​A protein needed for bone formation b.​A protein that decreases the “stickiness” of red blood cells c.​A
quester [9]

Answer:

​A protein needed for blood clot formation.

Explanation:

Prothrombin may be defined as the protein that changes in to the thrombin during the process of blood coagulation with the help of clotting factor X.

The main function of the prothrombin protein is the coagulation of blood. This protein is responsible for blood clotting at the time of external and internal injury.

Thus, the correct answer is option (c).

4 0
2 years ago
Explain why are the constrllations of the zodiac seen in both boston and brazil?
marishachu [46]

Answer:

Because Circumpolar constellations are constellations that never set below the horizon when seen from a particular location on Earth.

They can be seen in the night sky throughout the year, while other constellations are seasonal, visible only at certain times of year.

The term circumpolar refers to constellations and stars that are circling the north and south celestial poles without ever dipping below the horizon. All circumpolar constellations are found near the celestial poles and, due to their proximity to the poles, they never disappear from view.

The five northern constellations visible from most locations north of the equator throughout the year are Cassiopeia, Cepheus, Draco, Ursa Major, and Ursa Minor.

The three southern circumpolar constellations visible from most locations in the southern hemisphere are Carina, Centaurus, and Crux.

Other constellations are just as prominent in the sky and can be seen for most of the year, but only these eight are circumpolar.

6 0
3 years ago
Analysis of a blood sample from a fasting individual who had not eaten for 24 hours would be expected to reveal high levels of _
saw5 [17]

Answer:

Glucose

Explanation:

As since no other foods are found such as carbs the body breaks down the stored glycogen to produce glucose.

If you want to know the process of how the glucose is made pls comment.

7 0
3 years ago
Glycolysis is the first step of cellular respiration, in which glucose is used to generate ATP to power the cell. The major chem
lutik1710 [3]

Answer:

The correct answer is b. C6H12O6 -> 2 C3H4O3+2 H+

Explanation:

Glycolysis occurs in both the condition aerobic and anaerobic so it does not require oxygen. In glycolysis, one glucose molecule is converted into two pyruvate( 2 C3H4O3) and two 2 ATP, 2NADH, and 2 H₂O are produced.

Initially, 2NAD⁺ is produced during glycolysis which is reduced to produce 2NADH and 2 H⁺. Therefore the correct equation is  C6H12O6 -> 2 C3H4O3+2 H+.

Then this pyruvate is used in the Kreb cycle which is required for the complete breakdown of glucose into carbon dioxide and water and this process occurs in aerobic conditions. Complete oxidation is important to produce more energy from partially oxidized glucose.

6 0
2 years ago
What is derived trait chart used for?
Minchanka [31]

Answer:

Derived traits shared among the species or other groups in a dataset are key to helping us build trees. As shown above, shared derived traits tend to form nested patterns that provide information about when branching events occurred in the evolution of the species.

Explanation:

I hope this helps

8 0
2 years ago
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