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Mendelian Genetics… Underwater 🧜‍♀️🧜‍♀️

Last updated almost 3 years ago

8 questions

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Question 1

1.

While the majority mermaids and mermen have blue tails, a dominant trait, some possess a red tail, the recessive trait. Cornelius, a merman whose parents both had blue tails, has a red tail and mates with Cleo, a mermaid with a red tail. Perform a monohybrid cross between the two to find out what their children will look like.

Question 2

2.

Using information given and learned in the previous question, find the genotypes of the parents of Cornelius.

Question 3

3.

Cornelius and Cleo have a child named Cyrus, who has a blue tail. Explain why this may be of concern for the parents.

Question 4

4.

Coral, the sister of Cornelius, is a carrier of the tail color gene and is married to Zeke, who is homozygous dominant. Perform a monohybrid cross between the two to find out what their children will look like.

Question 5

5.

Mermaids and mermaid also either have the dominant green hair trait or recessive blue hair trait. Perform a dihybrid cross between a mermaid that is homozygous dominant for both hair and tail color traits with a merman that is heterozygous recessive for both traits to find out what their children will look like.

Question 6

6.

Cyprus, a merman with blue hair and a carrier of the red tail gene, mates with Calypso, a mermaid that is homozygous for blue hair and blue tail. Perform a dihybrid cross to find out what their children will look like.

Question 7

7.

What would be the phenotypic ratio of a dihybrid cross between 2 mermaids that are both heterozygous for both traits?

Question 8

8.

Would the genotypic ratio be the same as the phenotypic ratio mentioned in the question above?

Yes

No