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4 years ago

The picture shows two parents and one of their offspring.

Biology

2 answers:

nikklg [1K]4 years ago

8 0

Answer:

codominance because the offspring’s scale color includes both parents’ scale colors

Explanation:

Codominance means that neither allele can mask the expression of the other allele. An example in humans would be the ABO blood group, where alleles A and alleles B are both expressed. So if an individual inherits allele A from their mother and allele B from their father, they have blood type AB.

guajiro [1.7K]4 years ago

3 0

Answer:

codominance because the offspring’s scale color includes both parents’ scale colors

Explanation:

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consider a husband and wife who are both heterozygous for the autosomal recessive allel that causes albinism and who are both bl

Lelechka [254]

His and her child is also AB cause its the blood type of his/her parents

4 0

3 years ago

In trout, Gene A affects body color and yellow color (allele a) is recessive to red. In a particular river system you find that

hjlf

Answer:

The frequency of the dominant A allele is 0,4 or 40%.

Explanation:

In this population, we have:

- "A" red body color Dominant

- "a" yellow doy color Recessive

So, individuals AA and Aa will be red and trouts aa will be yellow. In this case, 64% of the fish are red, so they are AA or Aa.

If the population is in Hardy-Weinberg equilibrium the following will be true:

$p^{2}+2pq+q^{2}=1$

Where:

$p^{2}=$ frequency of AA

$2pq=$ frequency of Aa

$q^{2}=$ frequency of aa

It is known that 64% of population is red, in other words:

$p^{2}+2pq=0,64$

Or AA+Aa=0,64

So, it is possible to find the value of $q^{2}$ (aa):

$p^{2}+2pq+q^{2}=1$

$(0,64)+q^{2}=1$

$q^{2}=1-0,64$ $q^{2}=0,36$

Now, there are two alleles in this population, therefore their frequencies will be:

$p+q=1$

So, from $q^{2}$ it is possible to find q and p:

$q=\sqrt{q^{2} }$

$q=\sqrt{0,36}$

$q=0,6$

And:

$p+q=1\\p=1-q\\p=1-0,6\\p=0,4$

7 0

3 years ago

What factors influence whether a person will develop cancer

Triss [41]

There are some factors that influence cancer. Highly the top answer, smoking can DEFINITELY influence the risk because it ruins the lungs. On the other hand, heredity can influence it, too. If you dwell on it, if most of your family members have cancer, then it was passed down from member to member.

7 0

4 years ago

What enzyme complex is responsible for DNA replication?

krok68 [10]

Answer:

DNA polymerase.

Explanation:

DNA replication may be defined as the process of formation of daughter DNA from the template DNA strand. The process of DNA synthesis occurs in the 5' to 3' direction.

The enzyme responsible for DNA replication is DNA dependent DNA polymerase or DNA polymerase. This enzyme moves in 5' to 3' direction. DNA pol III is main replicating enzyme in prokaryotes and DNA pol alpha initiates DNA replication in eukaryotes.

Thus, the correct answer is option (a).

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4 years ago

In your own words, describe Crick's Central Dogma. Explain why this is an inference.

LuckyWell [14K]

<span>Central dogma by Crick is explaining how a gene is translated. It involves transcription and translation. Transcription is copying the message of DNA to mRNA. This message is translated in the cytoplasm by ribosomes with the help of tRNA to syntheise proteins which are basis of every metabolic reactions. This is an inference based on observations. For him it was found reasonable to infer the message should be carried from DNA to cytoplasm.</span>

8 0

4 years ago

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