Genetics

Front

What does T represent in genetics?

Back

T represents the dominant trait, which in this case is tall.

Front

What does t represent in genetics?

Back

t represents the recessive trait, which in this case is short.

Front

What is a Punnett square used for?

Back

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

Front

What is the genotype of a red-flowering plant if red (R) is dominant over white (r)?

Back

The genotype can be either RR (homozygous dominant) or Rr (heterozygous).

Front

What is incomplete dominance?

Back

Incomplete dominance is when the phenotype of a heterozygote is intermediate between the phenotypes of the two homozygotes.

Front

What does it mean to be a carrier of a genetic disorder?

Back

A carrier has one copy of a gene for a disorder but does not show symptoms of the disorder.

Front

If a horse has WW genotype, what color hair does it have?

Back

The horse has white hair.

Front

If a horse has ww genotype, what color hair does it have?

Back

The horse has non-white hair.

Front

What fraction of offspring will have white hair if you cross WW and ww horses?

Back

All offspring will have white hair.

Front

What is the difference between dominant and recessive traits?

Back

Dominant traits are expressed when at least one dominant allele is present, while recessive traits are only expressed when two recessive alleles are present.