a few biology questions?

i have some questions about bio, and you don't have to answer all of them, just whatever you know or explain a little bit. thanks:)

The number of chromosomes in a gamete is represented bythe sybol:
a. Z
b. X
c. N
d. Y

Which of the following assort independently?
a. chromosomes
b. genes on the same chromosomes
c. multiple alleles
d. codominant alleles

The outer protein coat of a virus is called a:
a. DNA core
b. capsid
c. bacteriophage
d. tail sheath

thank you :))
 
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