Genetics STAAR Review

Front

Why are there always two alleles in a genotype?

Back

Because you get one from your mom and one from your dad

Front

"T" is dominant, "t" is recessive. If an organism has the genes "Tt," which trait will result?

Back

"T" dominant

Front

If an organism has the genes "gg," which trait will result?

Back

"g" recessive

Front

What should you use to predict the traits of offspring when you know the genes of two parents?

Back

a Punnett square

Front

What is the probability of bb offspring?

Back

1/4

Front

What allele combination should go in the missing box? Options: AA, Aa, aa, none of these

Back

Aa

Front

Are recessive traits shown with capital or lowercase letters?

Back

Lowercase

Front

The physical appearance or the way a gene looks is known as it's...

Back

phenotype

Front

The different forms of genes are known as

Back

alleles

Front

An allele or gene that always shows is

Back

dominant