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3 years ago

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Here is a food chain. use this food chain to answer this question.which term describes the role of fungi in this food chain?a.om

nivore

2 answers:

ycow [4]3 years ago

6 0

Correct, if you were checking if your answer was right.

Y_Kistochka [10]3 years ago

5 0

The answer is I guess A. Omnivore. That is the only answer choice you gave.

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Consider a locus with two alleles - B and b. B is dominant, while b is recessive. There is no mutation. B has a selective advant

Marat540 [252]

Answer:

0.09

Explanation:

<h3><u>Before selection</u></h3>

Total number in population = 1000

Genotype frequencies

Genotype frequency of BB = 500/1000 = 0.5

Genotype frequency of Bb = 250/1000 = 0.25

Genotype frequency of bb = 250/1000 = 0.25

Allele frequencies

Allele frequency of B = BB genotype frequency + half of the Bb genotype frequency = 0.5 + (0.25/2) = 0.625

Allele frequency of b = bb genotype frequency + half of the Bb genotype frequency = 0.25 + (0.25/2) = 0.375

<h3><u>After selection</u></h3>

We are told that after selection, the genotype frequency of bb is changed as they become 50% less fit. This means the frequency of bb individuals changes from 250 to 125 individuals (50% reduction).

Now the total number of individuals is 500 + 125 + 250 = 875.

Genotype frequencies

Genotype frequency of BB = 500/875 = 0.57

Genotype frequency of Bb = 250/875 = 0.29

Genotype frequency of bb = 125/875 = 0.14

Allele frequencies

Allele frequency of B = BB genotype frequency + half of the Bb genotype frequency = 0.57 + (0.29/2) = 0.715

Allele frequency of b = bb genotype frequency + half of the Bb genotype frequency = 0.14 + (0.29/2) = 0.285

<h3><u>Change in frequency of B after 1 generation</u></h3>

0.715 - 0.625 = 0.09

7 0

3 years ago

An allele is made primarily of which kind of compounds?

xxMikexx [17]

Alleles refer to the DNA!! So B!

5 0

2 years ago

Read 2 more answers

How do shore crabs survive wave action

svetoff [14.1K]

Shore Crabs survive wave action by their shells and their strong claws. When a wave is coming they use their claws to the sand to get grip so the wave won't pull them away, they use their shells in case a rock or something hard in the waves come their way

4 0

3 years ago

The georgia supreme court ruled that a physician has a duty to take reasonable care to prevent a potentially dangerous patient f

kvv77 [185]

<span>This was Bradley Center v. Wessner, decided in 1982. This case revolved around the murder of Wessner's mother by Wessner's father after he was granted a weekend pass to leave his voluntary-admission to the Bradley Center mental health hospital. The courts found that the hospital had a duty to take reasonable steps to limit the mobility of a person whom they were reasonably certain would do bodily harm to others, should he or she be allowed to leave the facility.</span>

7 0

3 years ago

explain how repressible and inducible operons differ and how those differences reflect differences in the pathways they control

Sonja [21]

Answer

Operons are cluster of coordinated genes, including structural genes, an operator gene, and a regulatory gene.

Explanation:

In the The repressible operons, The transcription is usually on and repressor is in inactive form, So the specific genes are transcribed. While a regulatory molecule act as corepressor and binds to repressor protein to activate it. The repressor protein cause the inactivation of repressible operon (as the name indicate). E.g., Tryptophan Repress the trp operon.

A high level of product act as regulatory molecule (Corepressor) and turn off the operon, So anabolic pathways or synthesis of essential components are controlled by repressible operon.

In the Inducible operons, the transcription is usually off and repressor is in active form. So there is no transcription of genes. Specific Metabolite cause the activation of operon e.g lactose cause the induction of lac operon.

As a metabolite induces the operon, So they control the Metabolic pathways or breakdown of a neutrient.

7 0

3 years ago