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34kurt
3 years ago
15

The chromosomal structure that limits the number of cell divisions of a cell is the __________. the chromosomal structure that l

imits the number of cell divisions of a cell is the __________. kinetochore telomere histones centromere
Biology
1 answer:
Allushta [10]3 years ago
6 0

Answer:

telomere

Explanation:

Telomeres are structures or heterochromatic regions that are located at the end of each DNA strand and helps in protecting the chromosome. They prevent strands of DNA from being damaged which can result to destruction of cell functions.

These heterochromatic regions consists of repetitive nucleotide sequences, and they play a major role in preventing the chromosomes from deteriorating or fusing with other chromosomes. In general, telomeres play an important role in the preservation of genome information.

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All volcanoes have at least one vent, or opening. Which of the following does not erupt through volcanic vents?
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B.Liquid Water
Explanation: lava gushes out ashes go up and gases when it erupts only water does not erupt.
5 0
2 years ago
Suppose you discovered a mutant yeast whose glycolytic pathway was shorter because of the presence of a new enzyme catalyzing th
Ganezh [65]

Answer:

The correct answer is  the formation of pyruvate from glucose willl be energetically less favorable.

Explanation:

According to the question matunt yeast has a shorter glycolytic pathay catalysing a follwing reaction

 Glyceraldehyde-3-phosphate+H2O+NAD+  = 3-phosphoglycerate

So in the mutatant the formation of 1,3- bisphosphoglycerate is not occurring.The glyceraldehyde-3-phosphate is directly converted into 3-phosphoglycerate.

    As a result the substrate level phosphorylation step that deals with formation of 3-phosphoglycerate from 1,3  bisphosphoglycerate is not occurring.

  From this point of view it can be said that less energy will be formed in the mutant during glycolysis than that of normal one.

 So the formation of pyruvate from glucose will be energetically less favorable.

5 0
2 years ago
An animal that eats berries, insects and seeds would be placed in what classification?
GrogVix [38]
The answer is omnivore, because it eats plants and animals 
3 0
3 years ago
Read 2 more answers
If a father is affected by an X-linked dominant condition and the mother is not, which children can inherit the condition?
kaheart [24]

Answer:

only females

Explanation:

In humans, sex chromosomes in males and females are different. The sex chromosomes found in humans are X and Y chromosomes. X-linked trait is a trait which is inherited on the X- chromosome. According to the question, the trait is passed on a X-linked dominant condition, which means the condition is inherited on the abnormal dominant X-chromosome that will express itself even when in an heterozygous state with a normal X-chromosome.

Hence, a father affected by the condition will have a genotype; XY while a mother that does not have the condition will have a genotype: xx (two normal x chromosomes). Since the Father can only pass his X chromosome to his daughters and never his sons, all his daughters will inherit the condition (see the punnet square in attached image).

N.B: None of the sons will inherit the condition since the mother will pass normal X-chromosomes (x) to her sons.

7 0
2 years ago
Without a cuticle, a plant _____.
kolbaska11 [484]
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6 0
3 years ago
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