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Subjects
Science State Board
Class 10
Genetics
Classical genetics
31.
Phenotype and genotype
Exercise condition:
4
m.
Choose the best answer:
1
.
Consider the following scenario:
Heterozygous black (Bb) is fertilised with homozygous white (bb). What is the genotype and phenotype of the (F1) generation expected to be?
Genotypes 1/2 BB and 1/2 bb, phenotype Black and white
Genotypes 3/4 Bb and 1/4 bb, phenotype Black and white
Genotypes 1/4 Bb and 3/4 bb, phenotype Black and white
Genotypes 1/2 Bb and 1/2 bb, phenotype Black and white
2
.
The recessive alleles are express in the F1 generation.
True
False
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