Simple Dominance (Monohybrid) Punnett Square Practice Question Preview (ID: 36712)


Punnett Square Practice. TEACHERS: click here for quick copy question ID numbers.

In guinea pigs, the allele for short hair is dominant. Two short haired guinea pigs are mated several times. Out of 100 offspring, 25 of them have long hair. What are the probable genotypes of the parents?
a) HH x Hh
b) hh x HH
c) Hh x hh
d) Hh x Hh

In guinea pigs, the allele for short hair is dominant. In a cross between two heterozygous guinea pigs, what are the chances their offspring will have long hair?
a) 25%
b) 50%
c) 75%
d) 100%

In guinea pigs, the allele for short hair is dominant. In a cross between two heterozygous guinea pigs, what are the chances their offspring will have short hair?
a) 25%
b) 50%
c) 75%
d) 100%

In guinea pigs, the allele for short hair is dominant. What genotype would a long-haired guinea pig have?
a) HH
b) Hh
c) hh
d)

In guinea pigs, the allele for short hair is dominant. A pure-bred short haired guinea pig is mated with a long haired guinea pig. What are the chances their offspring will have short hair?
a) 25%
b) 50%
c) 75%
d) 100%

In guinea pigs, the allele for short hair is dominant. What genotype would a heterozygous short-haired guinea pig have?
a) HH
b) Hh
c) hh
d)

In guinea pigs, the allele for short hair is dominant. What genotype would a pure-bred short-haired guinea pig have?
a) HH
b) Hh
c) hh
d)

Two plants, both heterozygous for the gene that controls flower color, are crossed. What are the possible phenotypes of the offspring?
a) 25% RR, 50% Rr, 25% rr
b) 75% Purple, 25% White
c) 25% Purple, 75 % White
d) 100% Rr

A white flowered plant is crossed with a heterozygous purple flowered plant. What are the chances the offspring will have purple flowers?
a) 25%
b) 50%
c) 75%
d) 100%

If two white flowers are crossed (white is recessive), what are the chances their offspring will be white flowered?
a) 25%
b) 50%
c) 75%
d) 100%

A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant. What are the genotypes of the parents?
a) RR x RR
b) rr x rr
c) Rr x Rr
d) RR x rr

A homozygous round seeded plant is crossed with a homozygous wrinkled seeded plant, where round is dominant to wrinkled. What are the chances the offspring will also be homozygous?
a) 0%
b) 50%
c) 75%
d) 100%

A heterozygous round seed plant is crossed with a homozygous round seed plant. What are the chances their offspring will be homozygous?
a) 0%
b) 25%
c) 50%
d) 75%

Two heterozygous tall plants are crossed. What are the chances their offspring will be short?
a) 0%
b) 25%
c) 50%
d) 75%

Round seeds are dominant to wrinkled seeds. If a heterozygous parent is crossed with a heterozygous parent, what are the chances their offspring will be round?
a) 25%
b) 0%
c) 50%
d) 100%

Round seeds are dominant to wrinkled seeds. If a heterozygous parent is crossed with another heterozygous parent, what are the chances their offspring will be round?
a) 25%
b) 50%
c) 75%
d) 100%

A tall (TT) plant is crossed with a short plant (tt). What are the chances the offspring will be tall?
a) 25%
b) 50%
c) 75%
d) 100%

Round seeds are dominant to wrinkled seeds. If a heterozygous parent is crossed with a wrinkled seed parent, what are the chances their offspring will be round?
a) 25%
b) 50%
c) 75%
d) 100%

Round seeds are dominant to wrinkled seeds. If a homozygous dominant parent is crossed with a wrinkled seed parent, what are the chances their offspring will be round?
a) 25%
b) 50%
c) 75%
d) 100%

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