Log in
Sign up for FREE
arrow_back
Library

Genetics Basic Review

star
star
star
star
star
Last updated almost 2 years ago
15 questions
Note from the author:
monohybrid crosses
1
1
1
1
1
1
1
1
1
1
1
1
6
1
1
Question 1
1.

In plants tall (T) is dominant to short (t). Two heterozygous tall plants (Tt) are crossed. Draw the Punnett Square below.

Question 2
2.

In plants tall (T) is dominant to short (t). Two heterozygous tall plants (Tt) are crossed. What percent of the offspring will be tall? (see your cross from #1)

Question 3
3.

In plants tall (T) is dominant to short (t). Two heterozygous tall plants (Tt) are crossed. What is the genotypic ratio? (see your cross from #1)

Question 4
4.

In plants tall (T) is dominant to short (t). Two heterozygous tall plants (Tt) are crossed. What is the phenotypic ratio? (see your cross from #1)

Question 5
5.

Round seeds (R) are dominant to wrinkled seeds (r). What is the genotype for a homozygous dominant round seed?

Question 6
6.

Round seeds (R) are dominant to wrinkled seeds (r). A homozygous dominant round seeded plant is crossed with a homozygous recessive wrinkled seeded plant. Draw the Punnett Square.

Question 7
7.

Round seeds (R) are dominant to wrinkled seeds (r). A homozygous dominant round seeded plant is crossed with a homozygous recessive wrinkled seeded plant. What percent of the offspring will be round? (see your cross from #6)

Question 8
8.

Round seeds (R) are dominant to wrinkled seeds (r). A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant. What is the genotypic ratio? (see your cross from #6)

Question 9
9.

Round seeds (R) are dominant to wrinkled seeds (r). A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant. What is the phenotypic ratio? (see your cross from #6)

Question 10
10.

In plants, pink and white flowers are codominant. A white (WW) flowered plant is crossed with a heterozygous pink and white (PW) flower. Draw the Punnett Square.

Question 11
11.

In plants, pink (P) and white flowers (W) are codominant. A white (WW) flowered plant is crossed with a heterozygous pink and white (PW) flower. What percent of the flowers will be pink? (see your cross from #10)

Question 12
12.

In garden peas, green (G) is dominant to yellow (g). What cross produces 70% green pea plants and 30 % yellow pea plants?

Question 13
13.

Match the vocabulary words

Draggable itemarrow_right_altCorresponding Item
Codominance
arrow_right_alt
2 of the same alleles
Homozygous
arrow_right_alt
one dominant and one recessive allele
Genotype
arrow_right_alt
physical appearance
Heterozygous
arrow_right_alt
allele pairs
Incomplete Dominance
arrow_right_alt
the heterozygous condition is a blend
Phenotype
arrow_right_alt
two dominant alleles are expressed equally in the heterozygous condition
Question 14
14.

Another term for homozygous.

Question 15
15.

Two pea plants were crossed. The 45% of the offspring were short and 55% were tall. What was the genotypes of the parents?