Dihybrid Crosses 2024
star
star
star
star
star
Last updated about 2 years ago
25 Nsɛmmisa
1
1
1
Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be blue with round eyes (B_R_).
Use the chart below to identify the phenotype of a snail with the genotype WwPpbb
Use the chart to determine the genotype of a snail that is recessive for shell color, heterozygous for skin color, and homozygous dominant for eyes.
Draw the cross between a snail that is heterozygous for white shell and a snail with a black shell (homozygous recessive).
Remember
W= white
w=black
Look at #16 What percent of the offspring will have a white shell?
Draw the cross between two snails that are heterozygous for pink skin.
Remember
P=pink
p=white
Look at #18, What is the phenotypic ratio.
A scientists is studying the inheritance of two genes, gene B and gene H, in dogs. Each gene is located on a different chromosome. Gene B has two alleles, B and b, and gene H has two alleles, H and h. What are the expected probabilities for the genotypes of gametes produced by a dog with the genotype BbHh?
Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be blue with oval eyes (Bbrr or BBrr)?
Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be purple with round eyes?
Blue body color (B) is dominant to purple body color (b). Round eyes (R) is dominant to oval eyes (r). How many offspring in the cross will be purple with oval eyes?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of BbLl?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of bbLl?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of Bbll?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the phenotype of bbll?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will have blue eyes with a stubby nose?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will be purple eyes with a stubby nose?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will be blue eyes with a long nose?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will be blue eyes with a stubby nose?
Long nose (L) is dominant to stubby nose (l). Blue eyes (B) are dominant to purple eyes (b). What is the probability that the baby will have purple eyes?
R= red r= yellow
F= round f= pear shaped
What is the phenotype of a fruit that is RrFf?
R= red r= yellow
F= round f= pear shaped
Considering only fruit color, how many of the offspring will be red?
R= red r= yellow
F= round f= pear shaped
Considering only shape, how many of the offspring will be round?
R= red r= yellow
F= round f= pear shaped
How many of the offspring will be yellow and round?
R= red r= yellow
F= round f= pear shaped
How many of the offspring will be yellow and pear shaped?