Meiosis and Mendelian Genetics

Which of the following is heterozygous?

• MM

• Mm

• mm

Which of the following is homozygous dominant?

• RR

• Rr

• rr

Which of the following is homozygous recessive?

• QQ

• Qq

• qq

Which is a true statements about this picture?

• Brown is recessive

• Brown is dominant

• Blue is dominant

• Blue is codominant

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

T1 - What is the cause of some traits "skipping" a generation?

• dominant traits

• recessive traits

• hybrid alleles

• homologous chromosomes

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

The Law of Segregation explains why, if you start with 46 choromosomes, Meiosis produces cells with how many chromosomes?

• 44

• 22

• 46

• 23

T2 - Which law states that organisms inherit 2 copies of each gene and donate one to their offspring

• law of independent assortment

• law of segregation

• law of genetic linkage

• law of inheritance

Heredity is the passing of traits from _____________________ to _____________________

• predators to prey

• water to rain

• parents to offspring

• fungi to protists

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

You create a punnett square to determine the probability of hair color being passed to offspring. Brown hair is dominant. Blond hair is recessive. Both parents have brown hair. Both parents are heterozygous. What is the probability that the offspring will have blond hair?

• 100%

• 75%

• 50%

• 25%

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

NGSS.HS-LS3-3

In Mendelian Genetics (Named after Gregor Mendel), what is a dominant trait?

• A trait or characteristic that will appear in the offspring if one or both of the parents contributes it.

• The trait or characteristic that takes charge and all other traits follow.

• The trait or characteristic that asserts itself in the group of traits.

• The trait or characteristic that appears to disappear in the offspring.