Pergunta
What would be the phenotypic ratio of the offspring? 3 hairy: 1 hairless 1 HH : 2 Hh:1 hh
Solução
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Yara MariaElite · Tutor por 8 anos
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The phenotypic ratio of the offspring would be 3 hairy: 1 hairless.
Explicação
## Step 1
The problem is about Mendelian genetics, specifically the concept of dominance and recessiveness. The problem provides a genetic cross between two heterozygous parents (Hh).
## Step 2
The genetic cross can be represented using a Punnett square. The Punnett square is a graphical representation that shows the possible combinations of alleles that can occur in the offspring.
## Step 3
The Punnett square for this cross would look like this:
| | H | h |
|---|---|---|
| H | HH | Hh |
| h | Hh | hh |
## Step 4
From the Punnett square, we can see that there is 1 HH, 2 Hh, and 1 hh. This corresponds to the genotypic ratio of 1:2:1.
## Step 5
The problem also provides a phenotypic ratio of 3 hairy: 1 hairless. This means that the hairy trait is dominant and the hairless trait is recessive.
## Step 6
The phenotypic ratio corresponds to the genotypic ratio, which means that the hairy trait (H) is dominant and the hairless trait (h) is recessive.
The problem is about Mendelian genetics, specifically the concept of dominance and recessiveness. The problem provides a genetic cross between two heterozygous parents (Hh).
## Step 2
The genetic cross can be represented using a Punnett square. The Punnett square is a graphical representation that shows the possible combinations of alleles that can occur in the offspring.
## Step 3
The Punnett square for this cross would look like this:
| | H | h |
|---|---|---|
| H | HH | Hh |
| h | Hh | hh |
## Step 4
From the Punnett square, we can see that there is 1 HH, 2 Hh, and 1 hh. This corresponds to the genotypic ratio of 1:2:1.
## Step 5
The problem also provides a phenotypic ratio of 3 hairy: 1 hairless. This means that the hairy trait is dominant and the hairless trait is recessive.
## Step 6
The phenotypic ratio corresponds to the genotypic ratio, which means that the hairy trait (H) is dominant and the hairless trait (h) is recessive.
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