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zalisa [80]
2 years ago
8

Identical twins were separated at birth and raised by two different families. Years later, one twin was a physically fit member

of the cross-country team, and the other twin was overweight with slightly higher-than-normal blood pressure. The differences in these twins could be explained by the fact that 1. the genes in the two individuals are completely different 2. in twins, each individual inherits genes from only one parent 3. the DNA bases in twins combine differently 4. the environment can influence the expression of genes.​
Biology
2 answers:
Yakvenalex [24]2 years ago
4 0

Answer: The correct answer is actually 4. the environment can influence the expression of genes

Explanation:

antoniya [11.8K]2 years ago
3 0

Answer:

Explanation:

I am not that sure but according to me it will be the option 3.

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shtirl [24]

Answer:

The correct answer would be - 25%.

Explanation:

It is given that the Blue flower is dominant over the yellow flower which means Blue is represented by allele B here and allele b for yellow and Bb is a heterozygous case with a blue phenotypic character. Similarly, the Tall plant is dominant over short and represented by T and t respectively.

BbTt is a heterozygous condition and a cross with itself will produce :

Gametes: BT Bt bT and bt

          BT       Bt       bT       bt

BT     BBTT   BBTt   BbTT   BbTt

Bt      BBTt    BBtt    BbTt   Bbtt

bT     BbTT   BbTt    bbTT   bbTt

bt      BbTt     Bbtt    bbTt     bbtt

Here 4 out of 16 offspring are heterozygous for both traits represented by bold alphabets. Therefore the correct answer is 25%

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3 years ago
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8 0
2 years ago
Suzanne has brown eyes but also carries a gene for blue eyes. suzanne is _____ for the trait of eye color.
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Answer:

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Explanation:

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Answer:

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Explanation:

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3 years ago
Read 2 more answers
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