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seraphim [82]
1 year ago
6

For a human offspring to express a paternal mitochondrial gene, the individual must have inherited a mitochondrion from the sper

m. this is called ______. multiple choice question.
Biology
1 answer:
solmaris [256]1 year ago
5 0

For a human offspring to express a paternal mitochondrial gene, the individual must have inherited a mitochondrion from the sperm this is called paternal leakage.

<h3>What is mitochondrial diseases ?</h3>

A disease that develops when cellular energy production systems are broken.

The mitochondria's inability to fully burn nutrients and oxygen to produce energy, which is necessary for healthy cell function, is a common factor across mitochondrial disorders. It's frequently inherited.

Muscle weakness, developmental delays, and poor growth are possible symptoms. Although there is no cure, symptoms can be managed with medicine and physical therapy.

<h3>Causes of mitochondrial myopathies</h3>

Genetic mutations lead to mitochondrial disorders. Proteins are made according to instructions provided by genes, and the genes causing mitochondrial illness typically produce proteins that function inside mitochondria.

To know more about mutation visit :

brainly.com/question/13923224

#SPJ4

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Answer:

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8 0
3 years ago
Q:- In dogs, the Mexican hairless phenotype never breeds true. When Mexican hairless are interbred the offspring are 2/3 hairles
drek231 [11]

Explanation:

The problem says that the hairless phenotype never breeds true. That means that it's not the result of a homozygous genotype (H₁H₁ or H₂H₂), so it is caused by the heterozygous genotype (H₁H₂).

The <u>expected </u>offspring from the cross between two Mexican hairless would be:

<h3>P                 H₁H₂  x  H₁H₂</h3><h3>F1    1/4 H₁H₁,  2/4 H₁H₂ and 1/4 H₂H₂.</h3>

And the <u>expected</u> phenotypic ratio 3:1. However, the observed offspring shows a 2:1 ratio. What's happening?

If the observed phenotypic ratio in the offspring of a monohybrid cross (a single gene with two alleles) is 2:1, we can suspect that one of the genotypes is lethal in homozygosis and therefore does not appear in the progeny (the puppies are born dead).

If we proposed that the H₂ allele is lethal in homozygosis, then:

  • The H₁H₁ genotype would cause normal puppies --> 1
  • The H₁H₂ genotype would cause hairless puppies --> 2
  • The H₂H₂ is lethal and causes the death of puppies --> 0

The phenotypic ratios change to 2:1, as observed in the experiment.

7 0
3 years ago
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I think I’ll go with C. long dry cold winters
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They are the same because if u simplify both fractions they are both 1/4
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3 years ago
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