Biology Help?

[sgr782008]

If inheritance of a human trait is sex-linked (on the X chromosome) and recessive, any of the following could result except that
a. females could be a mosaic of two cell types
b. the trait could be more common in females than males
c. all females must be homozygous to express the trait
d. the gene for the trait might mutate to a dominant allele
e. expression of the trait might "skip" a generation

A group of F+ bacteria is mixed with a group of F- bacteria. After several days, all of the bacteria are F=.
a. transduction
b. transposition
c. translation
d. transformation
e. conjugation

You conduct a dihybrid cross and then testcross the F1 generation. A ___ ration would make you suspect that the genes are linked.
a. 7:7:1:1
b. 1:1:1:1
c. 3:1
d. 1:2:1
e. 9:3:3:1

Transcription of the DNA sequence AAGTTC will produce RNA with the sequence...
a. TTCAAG
b.AAGUUC
c.AAGTTC
d.UUCAAG
e.TTGUUC