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Natali [406]
3 years ago
5

Codominance is a form of inheritance in which two different alleles for a gene are both expressed, and neither allele is dominan

t over the other. One example of codominance is blood type in humans; the alleles for type A blood and type B blood are codominant. If a man who is homozygous for type A blood and a woman who is homozygous for type B blood have children, what would you expect to find in the children?
Half will have type A and half will have type B blood.
The children will all have type B blood.
The children will all half type A blood.
The children will all have type AB blood.
Biology
1 answer:
rusak2 [61]3 years ago
3 0
First we establish a table of genotypes and phenotypes:

genotype  phenotype
AA             type A
BB             type B
AB             type AB

Homozygous type A   has genotype AA
Homozygous type B   has genotype BB

Now we make the punnett square

           A             A
B        AB          AB
B        AB          AB

So we see that all (100%) of outcomes are type AB.
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You have spent time working with a population of beetles. Sexually mature males range in size from 2-6 cm in length. You realize
babymother [125]

Answer:

Option B, No

Explanation:

Complete question is as follows -

You have spent time working with a population of beetles. Sexually mature males range in size from 2-6 cm in length. You realize that the females only mate with males that measure less than 3 cm long. If you measured allele frequencies at a single gene (locus) that contributes to overall length, would you expect this population to be in H-W equilibrium from one generation to the next?

Select one:

a. Yes

b. No

Solution -

No, because Hardy Weinberg’s equilibrium theory is not applicable in practical scenario as it assumes that H-W equilibrium persists from one generation to the other only when these is no disturbing factor . These disturbing factors include – natural selection, non-random mating, genetic drift, gene flow and mutations. Since this theory works only in an idealized state where no such disturbances occur, it is very difficult to say that the beetle population can remain in H-W equilibrium. Also the females in the beetle population are selecting the males for mating thereby exhibiting sexual selection. Hence, H-W equilibrium will not be applicable.

Hence, option B

5 0
3 years ago
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Vikentia [17]
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What percentage of fish spcies live in freshwater ecosystems? A. 30% B 40% C. 45% B. 35%
Elenna [48]


I say about 40 percent cause say something like this ..

20% of small species of fish

20% of big species of fish

to be equal

20% are bigger

20% are smaller

hoped this helped ! <u />

<em>~</em><u><em>Frozen 2</em></u>

7 0
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Leno4ka [110]

Explanation:

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