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guajiro [1.7K]
4 years ago
8

A student claims that if the animal producing the spermatozoa has a mutation in a mitochondrial gene, the probability that any o

ffspring will inherit the mutation is zero. Provide evidence to support claim.
Biology
1 answer:
aalyn [17]4 years ago
3 0

Answer:

Mitochondrial DNA is inherited from the maternal side

Explanation:

Mitochondrial DNA is inherited from the maternal side (from the oocyte). The mitochondria from the sperm cell including their DNA are degrade after fertilisation.

The size of the cells that make the zygote also contribute to this. The oocyte is much larger than the sperm, containing around 100,000 mitochondria, whereas the much smaller sperm cell only contains around 100. This means even initially, there are very few paternal mitochondria compared to maternal mitochondria in the first place, effectively diluting them out.

This, coupled with the degradation of the sperm mitochondria, means that offspring will not inherit mitochondrial DNA and any mutations from their father.

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Mountain Bike is the correct answer

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I hope that it is correct

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Neporo4naja [7]

Answer:

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8 0
3 years ago
Fill in the missing words. naturalselection foundereffect geographicallyisolated species evolution
grandymaker [24]

Hi!


The ancestral finch founded a new population on one of the Hawaiian Islands. Due to the founder effect , allele frequencies of the first small population on one of the islands could have differed from their continental goldfinch-like ancestors. The process of natural selection resulted in adaptation and evolution of the island population into a new species over time. Some of the birds crossed to some of the other islands where they were geographically isolated and evolved into more species occupying different niches.


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8 0
3 years ago
Which of the following accurately describes pollination? 
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6 0
3 years ago
Read 2 more answers
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