Question

If a boy exhibits a sex-linked trait that is carried on the X chromosome, what must be true?
A. His mother exhibited that trait.
B. His father exhibited that trait.
C. His mother carried at least one allele for that trait.
D. His father’s mother carried an allele for that trait.

Answer 1

Would it be C?

Answer 2

yes u are right

Answer 3

Ok, thx! what bout this one?

Answer 4

plant grows faster and fuller due to large amounts of fertilizer. If the plant cross-pollinates with another plant later, how will the use of fertilizer on the parent plant affect the plant’s offspring?

All of the offspring will be taller than average because the parent plant’s genes were affected.

Some of the offspring will be taller than average because some of the alleles were affected.

The height of the offspring will not change because the parent’s genes did not change.

The height of some of the offspring will be taller if the other parent plant was also fertilized.

Answer 5

The height of the offspring will not change because the parent’s genes did not change.
a fertilizer only affect the somatoplasm not heriditary gene

Answer 6

Ok, thx. :) One more. :)

Answer 7

k

Answer 8

If a corn plant has a genotype Sstt, what are the possible genetic combinations that could be present in a single grain of pollen produced by the plant?

Ss, tt, St, st

Ss, tt, St, ST

St, st

St, sT, st

Answer 9

Ss, tt, St, st

Answer 10

Ok, thx, that's what I thought! LOL, did you take biology before?