AP Biology Heredity

An organism that has two different alleles for a trait.

• Genes

• Heterozygous

• Genotype

• Dominant allele

Tags

NGSS.HS-LS3-2

Every living thing has genetic information stored in the form of

• Ribosomes

• DNA

• Chloroplast

• Mitochondria

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

If two alleles are the same for a certain trait they are considered

• Homozygous

• Twins

• Heterozygous

• Common

Tags

NGSS.HS-LS3-1

Chromosomes are

• Found in the mitochondria

• Made of 20 pairs

• Long strands of DNA that contain many genes

• Bundles of DNA that contain only one gene each

Tags

NGSS.HS-LS3-1

If a gene is always expressed or always shown with a capital letter it is

• Bossy

• Recessive

• Yelling

• Dominant

Tags

NGSS.HS-LS3-1

Where are chromosomes found?

• vacuole

• cell membrane

• nucleus

• mitochondria

Tags

NGSS.MS-LS3-1

Which of the following is an example of a homozygous recessive genotype?

• AA

• Aa

• aa

• aA

In a dihybrid cross between two heterozygous individuals (AaBb x AaBb), what is the expected phenotypic ratio?

• 9:3:3:1

• 3:1

• 1:2:1

• 1:1

What is the function of a Punnett square in genetics?

• To determine the age of fossils

• To predict the outcome of genetic crosses

• To measure the rate of photosynthesis

• To analyze the structure of DNA

Which of the following best describes Mendel's Law of Independent Assortment?

• Genes for different traits are inherited together

• Genes for different traits are inherited independently

• Genes are inherited in pairs

• Genes are inherited from one parent only