What is the significance of stem cells in the process of meiosis (i.e., what are they there for?)

1 answer:

6 0

Well, certain stem cells are able to become any kind of (somatic) cell (totipotent stem cells), which helps in organ regeneration, etc. the only problem is that removing even one stem cell from an embryo kills the embryo, and people dont like that.

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Purple flowers are dominant to white flowers. A heterozygous purple flower is crossed with a white flower. What are the probabil

Zanzabum

Answer:

50% probability of Pp (purple) or pp (white) genotype.

Explanation:

P = purple gene

p = white gene

Punnet squares show the possible genotypes and probabilities of each genotype in the offspring of a cross:

Purple flower genotype (heterozygous) = Pp

White flower genotype = pp

Punnet Square:

$\left[\begin{array}{ccc}&P&p\\p&Pp&pp\\p&Pp&pp\end{array}\right]$

Potential genotypes for offspring are Pp and pp;

According to the Punnett square, 2 of 4 offspring will have the Pp genotype and the other 2 will have pp genotypes;

This means 2 should be purple and 2 white;

Or, there is a 50% chance of having either genotype, of being purple or white.

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Mitochondria contain their own double-stranded, circular DNA and replicate on their own. Why don't they suffer the same conseque

Maksim231197 [3]

Answer:

Mitochondrial DNA is circular, so it doesn't shorten when it replicates unlike the rest.

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Which forage crop do honey bees favor for its nectar

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