Unit 8: Genetic Patterns

What gives you your acquired traits?

• Your DNA

• Environment

• Parents' chromosomes

• Heredity

What gives you your inherited traits?

• Your DNA

• Environment

• School

• Brain

Which of the following is an acquired trait?

• dimples

• pierced ears

• attached earlobes

• cleft chin

This picture represents Gregor Mendel's experiments with pea plants. He bred different combinations of green and yellow plants. Based on the final results, what do we know?

• Green and yellow are the only colors pea plants can be.

• Green and yellow are dominant traits.

• Green is a dominant trait for pea plants, and yellow is a recessive trait.

• Yellow is a dominant trait for pea plants, and green is a recessive trait.

If a mother who is homozygous dominant for her eye color, brown, has a baby with a father who is homozygous recessive for his eye color, blue... what will be true about all of their offspring? (Hint: it might help to use a punnett square!)

• They would be heterozygous and have blue eyes

• They would be homozygous recessive and have blue eyes

• They would be homozygous dominant and have brown eyes

• They would be heterozygous and have brown eyes

What is a dominant trait?

• a trait that shows up if you have at least one dominant allele

• a trait that shows up only if you have two dominant alleles

• a trait that comes from your childhood

• a trait that happens in every generation

I am heterozygous for my eye color (Bb). I have one allele for brown (B) and one allele for blue (b). Why don't I have blue eyes?

• The blue allele turned into a brown allele when I grew up.

• I don't have two dominant alleles.

• The dominant allele (brown), hides the recessive allele (blue).

• Brown is darker than blue.

Alleles are different forms of....

• cells

• mitochondria

• golgi apparti

• genes

Which of the following is a heterozygous genotype?

• brown hair

• TT

• Tt

• tattoos

Which of the following is homozygous recessive?

• brown hair

• TT

• tt

• tattoos