Inheritance

Front

What is inheritance in genetics?

Back

Inheritance is the process by which genetic information is passed from parents to their offspring.

Front

What is a dominant trait?

Back

A dominant trait is a genetic trait that is expressed in the phenotype even when only one copy of the gene is present.

Front

What is a recessive trait?

Back

A recessive trait is a genetic trait that is only expressed in the phenotype when two copies of the gene are present.

Front

What does the genotype 'pp' represent?

Back

The genotype 'pp' represents a homozygous recessive condition, meaning both alleles are for the recessive trait.

Front

If purple flowers (P) are dominant to white flowers (p), what phenotype does 'PP' represent?

Back

'PP' represents the phenotype of purple flowers.

Front

What is the probability of offspring being white if both parents are 'pp'?

Back

The probability is 100% because both parents can only pass on the recessive allele.

Front

In a cross between 'Pp' and 'Pp', what is the percentage of offspring that will be purple?

Back

75% of the offspring will be purple (PP or Pp).

Front

What is a Punnett square?

Back

A Punnett square is a diagram used to predict the genetic outcomes of a cross between two organisms.

Front

What is the expected percentage of green offspring from a cross of 'Yy' and 'Yy' if yellow (Y) is dominant to green (y)?

Back

25% of the offspring would be green.

Front

What does it mean if a trait is homozygous?

Back

Homozygous means that an organism has two identical alleles for a particular trait.