QUESTION 1 Mendel\'s law of segregation applies to: a) Monohybrid crosses only b

Question

QUESTION 1

Mendel's law of segregation applies to:

a) Monohybrid crosses only

b) Both monohybrid and dihybrid crosses

c) Dihybrid crosses only

d) Both monohybrid and dihybrid crosses, but not higher order crosses (i.e. trihybrid, tetrahybrid)

QUESTION 2

When two alleles express equally in a heterozygous individual then the following is true:

a) The phenotype is an effect of epistasis

b) The alleles are co-dominant

c) One allele is not completely dominant over the other.

d) One allele is dominant over the other

QUESTION 3

In a genetic cross between AaBbCcDdEe and Aabbccddee what fraction of the offspring will be homozygous for all dominant alleles?

a) 1/128

b) 1/64

c) None

d) 1/32

QUESTION 4

Mendel's laws of inheritance are valid for

a) Asexual reproduction

b) Both sexual and asexual reproduction

c) Vegetative reproduction

d) All forms of reproduction

Sexual reproduction

QUESTION 5

A tall plant has been found, but its zygosity is unknown. Tall is dominant over short height. The following can be done to determine its zygosity:

a) Cross to a heterozygous tall plant

b) Let it self fertilize then analyze the progeny

c) Cross to a true breeding tall plant

d) Cross to a true breeding short plant

QUESTION 6

When heterozygous tall plants with purple flowers self pollinate to give rise to tall and dwarf plants with purple flowers, it demonstrates the following:

a) independent assortment of alleles

b) co-dominance of alleles

c) dependent assortment of alleles

d) segregation of alleles

a) Monohybrid crosses only

b) Both monohybrid and dihybrid crosses

c) Dihybrid crosses only

d) Both monohybrid and dihybrid crosses, but not higher order crosses (i.e. trihybrid, tetrahybrid)

Explanation / Answer

1- monohybrid cross

2-the allele are co dominant

3-none

4-all form of reproduction

5-cross to true breeding short plant

6-independent assortment of allele

Note- the allele of two different trait cross independent of each other and result in reombinant variety . These las applies to all form of reprdocuction.

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