For this week's CRQ, you are to design your own genetic cross between a female and a male. Be sure to include each of the following within your cross and then you will need to provide the solution as well.

1. What are the dominant and recessive traits in cross?
2. Is the male homozygous dominant, homozygous recessive, or heterozygous?
3. Is the female homozygous dominant, homozygous recessive, or heterozygous?

In your answer, provide the following as well:
1. genotypes and phenotypes for parent and offspring

If you want to insert an image of your cross, you may as well but NOT required.

Please write in complete sentences.

Answer and Explanation:

Punnett squares are illustrations that display the product of hybrid trait crosses by genetic breeding. Established parent genotypes and phenotypes are used and are usually compatible with Mendelian ratios and inheritance. The phnomenon influencing this behaviour is the

For this cross...

Assuming Widow's peak= dominant

1. What are the dominant and recessive traits in cross?

Parent generation or P generation:

gametes: Ww → Widow's peak dominant (W), No Widow's peak recessive (w)

2. Is the male homozygous dominant, homozygous recessive, or heterozygous?

Heterozygousity describes the allelic makeup; these traits are made of two different forms of the same gene.

Male: Ww  →  with the W.peak;  

(Thus, with both W and w this is a heterozygous trait)

3. Is the female homozygous dominant, homozygous recessive, or heterozygous?

However, homozygous traits are made up of the same forms of the gene called alleles.

Female: ww → without the W.peak  

(Thus, with both w ad w this is a homozygous trait)

1. genotypes and phenotypes for parent and offspring...

Assuming heterozygousity of the male , for the cross

P generation:                          Ww× ww

                            Widow's peak  ×No Widow's peak  

F1 generation:

∴ 50% are genotypically heterozygous while 50% is homozygous , 2 with the W.peak; 2 without

meiosis is the correct answer

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