Chapter 6-7 2021-2022

How many chromosomes does a normal human have?

• 22
• 23
• 33
• 46

__________ is the symbol for diploid.

• N
• 2N
• NN
• NX

Autosomes are chromosome _______

• 1-23
• 23 only
• 1-22
• 22 only

Who is called the father of genetics?

• Mendel
• Darwin 
• Trump
• Nye

____________ are distinguishing characteristics that are inherited.

• gametes
• alleles
• genes
• traits

Which is an example of a homozygous genotype?

• Rr
• RR
• Hh
• Tt

These are located on the same chromosome and are inherited together.

• linked genes
• germ cells
• autosomes
• traits

Which is NOT a somatic cell?

• skin
• liver
• brain
• egg

What does a white square represent on a pedigree?

• healthy female
• healthy male
• carrier male
• diseased female

What is the problem in this karyotype?

• too few chromosomes
• deformed chromosomes
• 3 chromosomes on the 23rd set
• 3 chromosomes on the 21st set