Punnett Squares and Sex Linked Traits

Front

What is the physical appearance of an organism called?

Back

Phenotype

Front

Which of the following is a phenotype? Aa, red hair, heterozygous, DNA

Back

red hair

Front

What genotype is homozygous dominant? A, Aa, AA, aa

Back

AA

Front

What genotype shows a CARRIER for a trait? X^B X^b, X^b X^b, X^B X^B, X^b Y

Back

X^B X^b

Front

What are different variations of a gene called?

Back

Alleles

Front

What is the genetic makeup of an organism called?

Back

Genotype

Front

What is the term for an organism with two identical alleles for a trait?

Back

Homozygous

Front

What is the term for an organism with two different alleles for a trait?

Back

Heterozygous

Front

What is the probability of obtaining a homozygous recessive offspring from two heterozygous parents?

Back

25% (1 in 4)