Question

QUESTION 1 :The alleles of a particular gene segregate independently into individual gametes (sex cells) during meiosis.

True or False

QUESTION 2:The DNA sequence of a gene is a phenotype.

True or False

QUESTION 3:Two diploid individuals, one homozygous and the other heterozygous at a particular gene, make babies. Which of the following statements about the offspring genotype is correct? (Hint: draw Punnett squares)

	A.	All offspring are heterozygotes
	B.	All offspring are homozygotes
	C.	1/2 of the offspring are homozygotes and 1/2 are heterozygotes
	D.	1/4 of the offspring are homozygotes and 3/4 are heterozygotes

QUESTION 4:Consider a diploid organism. What is the phenotypic ratio expected to be observed in the offspring produced by two homozygous recessive parents?

A.		0 dominant: 1 recessive
B.		1 dominant: 1 recessive
C.		1 dominant: 0 recessive

QUESTION 5:You cross a pea plant with purple flowers to a plant with white flowers. The resulting offspring have a mixture of purple and white flowers. What were the possible genotypes of the parents if the purple allele is dominant (B) and the white allele is recessive (b)? (Hint: draw Punnett squares).

A	.	Parent 1: BB, Parent 2: bb
	B.	Parent 1: BB, Parent 2: BB
	C.	Parent 1: bb, Parent 2: bb
	D.	Parent 1: Bb, Parent 2: bb

QUESTION 6:Consider a plant character, leaf shape. In a tree species, it has been determined that leaf shape is controlled by a single gene segregating two alleles, and having rounded leaves is dominant to elongated leaves.

An experiment that crossed a rounded-leaf plant with an elongated-leaf plant, both from true-breeding lines, found the following results: all F1 offspring have rounded leaves. F2 offspring, which came from selfing of F1 individuals, also all have rounded leaves.

A hypothesis suggests that the law of _______ is most likely violated in this mating. Fill in the blank.

		A.Gravity
	B.	No law was violated
	C.	Segregation
	D.	Dominance

QUESTION 7:Mendel's law of Independent Assortment describes the independent movement of _______ into ______ during meiosis.

A.		alleles of different genes, gametes
B.		genotypes, gametes
C.		alleles of different genes, the cytoplasm
D.		alleles of a gene, the cytoplasm

Answer 1

Question 1. Answer- true

In the process of gamete formation meiosis-I involves seperation of homologous chromosomes which leads to seperation of two alleles indepedent of each other.

Question 2. Answer- false

Sequence in genetic material that is DNA is called genotype, and its effect on body is called as phenotye.

Question 3. Answer- c 1/2 of the offsprings ar3 homozygous and 1/2 are heterozygous

Question 4. Answer- A. 0 domimant 1 recessive

In this case parents are homozygous recessive which means that they do not have any dominant allele and therefore there progeny cannot get any dominant allele.

Question 5. Answer- D. Parent1 : Bb and Parent2 : bb

Question 6. Answer- c. Law of segregation.

Question 7. Answer- A. Alleles of different genes, gametes.