Monohybrid Mendellian Genetics Question Preview (ID: 50468)
This Is A Game That Reviews Basic Genetics Vocabulary And Simple Monohybrid Crosses.
TEACHERS: click here for quick copy question ID numbers.
An organism with a homozygous dominant genotype is represented with the letters-
a) aa
b) AA
c) Aa
d) AA and aa are both correct
An organism with a heterozygous genotype is represented with the letters-
a) aa
b) AA
c) Aa
d) AA and aa are both correct
An organism with the recessive phenotype has the genotype-
a) aa
b) AA
c) Aa
d) AA and aa are both correct
Another name for the physical characteristics of an organism is--
a) genotype
b) phenotype
c) trait
d) both trait and phenotype are correct
In plants, tall (T) is dominant to short. If a homozygous tall plant is bred with a heterozygous plant. What are the genotypes of the two plants?
a) TT x Tt
b) TT x tt
c) tt x Tt
d) TT x TT
In peas, round (R) is dominant to wrinkled. A heterozygous round pea is crossed with a wrinkled pea. What are the genotypes of the parents?
a) RR x Rr
b) RR x rr
c) Rr x rr
d) Rr x Rr
In plants, tall (T) is dominant to short. If a homozygous tall plant is bred with a heterozygous plant. What is the predicted phenotypic ratio of the offspring?
a) 100% short
b) 50% tall and 50% short
c) 75% tall and 25% short
d) 100% tall
In peas, round (R) is dominant to wrinkled. A heterozygous round pea is crossed with a wrinkled pea. What is the expected genotypic ratio of the parents
a) 1 RR : 2 Rr : 1 rr
b) 2 RR : 2 Rr : 0 rr
c) 2 RR : 0 Rr : 2 rr
d) 0 RR : 2 Rr : 2 rr
In guinea pigs, black fur (B) is dominant to white fur (b). If two heterozygous guinea pigs mate, what is the predicted genotypic ratio?
a) 2 BB : 2 Bb : 0 bb
b) 1 BB : 2 Bb : 1 bb
c) 0 BB : 2 Bb : 2 bb
d) 0 BB : 4 Bb : 0 bb
In guinea pigs, black fur (B) is dominant to white fur (b). If a black female guinea pig mates with a white male guinea pig and half of the offspring are black then--
a) the black female guinea pig was heterozygous
b) the black female guinea pig was homozygous dominant
c) the offspring with black fur are homozygous for their black coat color
d) the offspring with white fur are heterozygous
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