2024-25 Fall Semester Review

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the outcome of a genetic cross by showing the possible combinations of alleles from the parents.

Front

What does 'Bb' represent in genetics?

Back

'Bb' represents a heterozygous genotype, where 'B' is a dominant allele and 'b' is a recessive allele.

Front

What does 'BB' represent in genetics?

Back

'BB' represents a homozygous dominant genotype, where both alleles are dominant.

Front

What is the probability of having a blue offspring from a Bb and BB cross?

Back

100% likelihood of having blue offspring.

Front

What is the probability of having a blue offspring from two homozygous red birds (bb)?

Back

0% likelihood of having a blue offspring.

Front

What is the probability of having short offspring from two heterozygous tall plants (Tt)?

Back

25% likelihood of having short offspring.

Front

What is the probability of having tall offspring from a heterozygous tall plant (Tt) and a recessive short plant (tt)?

Back

50% likelihood of having tall offspring.

Front

What is the definition of a dominant allele?

Back

A dominant allele is an allele that expresses its trait even when only one copy is present in the genotype.

Front

What is the definition of a recessive allele?

Back

A recessive allele is an allele that only expresses its trait when two copies are present in the genotype.

Front

How do you determine the genotype of an organism?

Back

The genotype of an organism can be determined by analyzing its alleles, which can be homozygous or heterozygous.