Heredity B/Designer Genes C Question Marathon

[hmath729]

Yep, your turn.

[hmath729]

Just wondering, is this how to hide an answer?

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[PicturePerfect]

Just wondering, is this how to hide an answer?

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To answer your question.. (Click to Show Hidden Text)

yes :)

[hmath729]

Here's a two-parter.

1. Describe this person's karyotype in the form of (46, XY)
2. Is there anything wrong with this person? If so, what is the name of the disorder?

[emescferrall]

Not sure about what you mean in the first part, but here's the answer to the second part . . . [hide]This male has Down Syndrome, also called Trisomy 21.[/hide]

[hmath729]

Correct, your turn. Just remember that the format for hiding is

Code: Select all

[hide]Stuff outside|Stuff inside[/hide]

[PicturePerfect]

Would the first part be.. (Click to Show Hidden Text)

47, XY, +21

[hmath729]

Yep.

[emescferrall]

Okay. Here goes: A male with blood type A marries a woman with blood type AB. They have four children. List the genotypes and phenotypes of these four children.

[vennowsah]

Is this correct? (Click to Show Hidden Text)

Since the genotype of the male isn't specified, he can have two possible genotypes.
If the male has a genotype of AA, then the four children would be:
Genotype- 2:2 (50% AA, 50% AB)
Phenotype- 2:2 (50% type A, 50% type AB)

If the male has a genotype of AO, then the four children would be:
Genotype- 1:1:1:1 (25% AA, 25% AO, 25% AB, 25% BO)
Phenotype: 2:1:1 (50% type A, 25% type AB, 25% type B)