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lidiya [134]
3 years ago
9

Which organ helps to process essential proteins and minerals, so that they can then be taken through the bloodstream and to the

cells that need them?
a. the lungs
b. the stomach
c. the heart
d. the inner ear?
Biology
1 answer:
Serjik [45]3 years ago
6 0
The answer is B)the stomach
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If the frequency of the recessive allele for a gene is 0.3, calculate the expected frequency of heterozygotes in the next genera
Kisachek [45]
Q = recessive allele frequency = 0.3, and thus in H-W equilibrium there are ONLY two alleles, q (recessive) and
p (dominant). Therefore all of the p and q present for this gene in a population must account for 100% of this gene's alleles. And 100% = 1.00.
So p, the dominant allele frequency, must be equal to 1 - q --> p = 1 - q
p = 1 - 0.3 = 0.7.
Since heterozygotes are a combination of the p and q, we must again look at the frequencies of each genotype: p + q = 1, then (p+q)^2 = 1^2
So multiplying out (p+q)(p+q) = 1, we get: p^2+2pq+q^2 = 1 (all genotypes), where p^2 = frequency of homozygous dominant individuals, 2pq = frequency of heterozygous individuals, and q^2 = frequency of homozygous recessive individuals.
Therefore if the population is in H-W equilibrium, then the expected frequency of heterozygous individuals = 2pq = 2(0.7)(0.3)
2pq = 2(0.21) = 0.42, or 42% of the population.
Hope that helps you to understand how to solve population genetics problems!
7 0
3 years ago
Plants don’t move freely. How do the plant structures shown in the three images help to ensure successful reproduction? Explain
RSB [31]

The bee who is enthralled by the pollen gets some of it stuck to itself and travels with the plants offspring which ensures the plants reproduction. The wind blows the seeds of the dandelion to far off places to ensure the reproduction of the dandelion. The squirrel who is storing acorns for the winter will eat some of them, but other acorns are forgotten which ensures the reproduction of the acorn tree's reproduction.

3 0
4 years ago
Read 2 more answers
A true-breeding red rose is repeatedly mated with a true-breeding white rose, and all of their offspring are red. if two of thes
tamaranim1 [39]
100% would be red because if you take your chart, you would put Rw and Rw on the columns. which would lead to all 4 boxes being, Rw, Rw, Rw, Rw.  
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3 years ago
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Mama L [17]

Answer:

waterproof barrier and creates our skin tone

Explanation:

hope this helps

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How many possible versions of each gene are there?<br> 1<br> 2<br> 3<br> 4
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