Genetics Review

True or False
Mendel determined that each parent contributes on factor for each trait in the offspring.

• True
• False

True or False:
Bird A has the genotype ll for bill length, and Bird B is LL.  A short bill describes bird A's Genotype.

• True
• False

True or False:
A florist has a one of a kind plant that usually has beautiful red flowers, but sometimes has white flowers.  If she crosses plants A and B as shown, 50% of the offspring will have red flowers.

• True
• False

In the cross between two pea plants, the offspring are:

• 100% smooth
• 50% smooth and 50% wrinkled
• 75% winkled and 25% smooth
  75% wrinkled and 25% smooth
• 75% smooth and 25% wrinkled

In a Punnett Square, a capital letter stands for a _____________ allele.

• recessive
• dominant
• homozygous
• heterozygous

A Punnett Square shows you all the ways in which ___________ can combine.

• alleles
• eggs
• sperm
• colors

A recessive trait is observed when _________ recessive genetic factors are present in offspring.

• 1
• 2
• 3
• 4

A genetic factor that blocks another genetic factor is called a _______________.

• genetic trait
• heredity trait
• recessive trait
• dominant trait

Of the following, which represents a homozygous recessive genotype?

• TT
• Tt
• tT
• tt

Which of the following scientists is considered to be the father of modern genetics?

• Rosalind Franklin
• James Watson
• Gregor Mendel
• Francis Crick