Unit 5 Genetics Quiz

There are several exceptions to Mendel and his experiments. Which one below explains Incomplete and co dominance

• one gene involved but more than two versions of that gene is present.

• The hybrid form creates a blend of the dominant and recessive trait and two traits are expressed at the same time when both are in an allele pair.

• Many genes are used to create a range of phenotypes

• The heterozygous pair of alleles produce two separate but dominant traits that mix or blend together.

Tags

NGSS.HS-LS3-2

The phenotype ratio of a monohybrid cross is __________ and that of a dihybrid cross is_______________.

• 5: 1 and 3:3:1

• 3:1 and 9: 3: 3:1

• 4: 0 and 16 :0 : 0 :0

• 2:2 and 8 :0 : 0: 8

Which of Mendel's two laws explain why a short offspring appears in the next generation even though both parents were tall and Heterzygous( hybrid)

• Law of segregation

• Law of Dominnace

• Law of Independent assortment

• Law of polygenic traits

Tags

NGSS.HS-LS3-1

A two trait cross with parents that are BBTt and BbTt will produce the gametes _______________________________.

• BT, Bt, Bt, bT and Bt, bT, bt, Bt

• bT, bt, BT, BT and BT, bT, bt, Bt

• BT, Bt, BT, Bt and BT, BT, Bt Bt

• BT, Bt, BT, Bt and BT, Bt, bT, bt

Blood type is an example of what type of inheritance?

• polygenic traits

• incomplete dominance

• codominance

• multiple alleles

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Two examples of X-linked traits are

• cancer and bunny fur

• hemophilia and color blindness

• covid 19 and SARS

• skin color and height

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

In two trait crosses there are four posibble phenotypes because you are crossing two separate traits. One trait might be the height (tall or short) of the plant and another trait may be the texture of the seeds (rough or smooth). which of the following describes why this occurs?

• incomplete dominnace

• codominance

• polygenic traits

• Law of independent assortment

Mendel's first experiment resulted in all the offspring having what genotype?

• TT

• tt

• Tt

• Short

Tags

NGSS.HS-LS3-1

A carrier in a pedigree chart will be half shaded in. If a carrier male (Tt) and a homozygous recessive female (tt) have offspring what are their genotype probabilities?

• 50% Tt and 50% tt

• 75 % TT and 25% Tt

• 50% TT and 50% tt

• 75% Tt and 25% tt

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Blood Type genotype i i will result in a person having blood type __________.

• Type i

• Type A

• Type O

• Type AB

Tags

NGSS.HS-LS3-2