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PSYCHO15rus [73]
2 years ago
5

34. A parent cell with 24 chromosomes enters meiosis. Which type of cell is

Biology
1 answer:
user100 [1]2 years ago
5 0

Answer:

a cell with 12 chromosomes, and one chromosome is donated from each

homologous pair of the parent cell

Explanation:

Meiosis is one of the two types of cell division that involves sexual reproduction. Meiosis is the division that involves the production of four daughter cells (gametes) with each having its chromosomal number reduced by half. Meiosis is called "reduction division" because it reduces the chromosome number of the parent cell.

In this question, a parent cell with 24 chromosomes is said to enter meiosis. This means that after the meiotic division, daughter cells with 12 chromosomes will be produced in such a way that one of each homologous pair of chromosome (chromosomes from male and female parent) is donated to each gamete.

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Briefly outline the steps involved in glycogen synthesis and breakdown and explain the regulatory mechanism involved in glycogen
Elenna [48]

Answer:

Glycogen is synthesized and degraded by different pathways, which provide greater flexibility for energy production through its degradation or for storage in its synthesis and thus maintain control of both metabolic pathways.

Explanation:

Synthesis and degradation pathways:

1º.- activation of glucose units at UDP-glucose.

UDP-glucose is an activated form of glucose, which is formed in a reaction catalyzed by UDP-glucose, which is formed in a reaction catalyzed by UDP-glucose pyrophosphorylase. This reaction is an example of biosynthetic reactions that are directed by the hydrolysis of pyrophosphate (PPi-2Pi).

Many biosynthetic reactions are directed by the hydrolysis of pyrophosphate, which catalyzes pyrophosphate hydrolase or pyrophosphatase, and is very favorable thermodynamically.

2nd.- polymerization or addition of glucose units to glycogen. Two steps: addition and branching.

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A branching enzyme [amyl (1,4 -> 1,6) -transglucosidase], moves a chain of about seven glucose residues, to form

bonds (α1-> 6) at the branching points.

To start glycogen synthesis, glycogen synthase is only effective when it is linked to glycogenin. Glycogenin is

an oligosaccharide carrier protein formed by glucose units with linkages (α1-> 4).

6 0
3 years ago
Which condition is inherited as a dominant allele?
ratelena [41]
Huntington’s disease
6 0
3 years ago
What carries blood away from the heart and to the body answers?
S_A_V [24]
The aorta carries oxygenated blood from the right ventricle to the rest of the body for energy and metabolism.
5 0
3 years ago
What is a green plant supported by so it can stand up? water osmotic pressure cell walls
tiny-mole [99]

Answer:

Cell walls

Explanation:

Water is not it, as liquids usually serve no supportive value.

Osmotic pressure is, "the pressure that would have to be applied to a pure solvent to prevent it from passing into a given solution by osmosis, often used to express the concentration of the solution." (Google Dictionary)

Cell walls are rigid shells on the outside of most plants which helps them stay rigid.

5 0
3 years ago
Read 2 more answers
Why blood and cytoplasm of cells are mainly composed of liquid water
vredina [299]
Water is an important transport and reaction medium  
hope this helps :)


8 0
3 years ago
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