1. Experiments on Plant Hybridization was written by:

(a) Sutten          (b) Mendel    (c) Darwin     (d) De Varies

2. Word gene was used by:

(a) Sutten      (b) Mendel    (c) Bateson    (d) De Varies

3. The cross in which two characters are followed at the same time is called:

(a) Monhybrid cross           (b) Reciprocal cross

(c) Dihybrids cross            (d) Hybrid cross

4. When round wrinkle were cross, it gave all round. This
   round is:

(a) P_I generation               (b) F₁ generation

(c) F₂ generation               (d) FA Generation

5. When tall is crossed with dwarf, F₁ gives tall, it is:

(a) Recessive (b) Hybrid      (c) Dominant (d) none

6. The law of segregation gives genotypic ratio in F₂ as:

(a) 2:1          (b) 4:1         (c) 3:1          (d) 1:2:1

7. In F₃ cross the round produce only round were:

(a) V,              (b) 1/3         (c) v2           (d) None

8. If test cross gives all dominant characters it means the parent is:

(a) Homozygous recessive  (b) Heterozygous  ‘

(c) Homozygous dominant   (d) Heterozygous dominant

9. The gametes of F₁ are formed in ratio:

(a) 1:2              (b) 1:1:1:1   (c) 9:3:3:1    (d) 1:1

1. The gene linkage minimize the chances of:

(a) Cross over                  (b) Segregation

(c) Genetic recombination   (d) Independent assortment

There are 80% parental and 20% recombinant in a

cross. Its recombinant frequency is:

(a) 10%        (b) 20%      (c) 40%          (d) 80%

Answers:

1. (b) 2. (c) 3. (c) 4. (c) 5. (c) 6. (d) 7. (a) 8. (c) 9. (b) 10. (a) 11. (b)

Fill in blanks

I. The study of transfer of hereditary characters (genes) from

parent to offspring is called ___

2. __________ genetics includes the training of genetists to
   diagnose, treat, and counsel patients with genetic disorders or syndromes.
3. Mendel called the character as_____ pair of a trait.
4. A variety which always produces offspring identical to the

parents by self- fertilization is called _________ variety.

5. The offspring produced by the cross fertilization between two

plant, differing in one character are called ________

6. The offspring produced by the cross fertilization between two

plant, differing in two characters are called_______

7. When two pure line parents are crossed with each other, they are

called first________ generation.

8. The hereditary information are transmitted from parents to

offspring through________

9. When both the alleles of a gene pair in an organism are same, it is called
   1. When both the alleles of a gene pair in an organism are different,

   it is called _________

   2. The cross which is used to determine the genotype of an

   individual is called_________

   3. The F2    of law of independent assortment progeny gives

   _________ phenotypic ratio.
   Ans:

   1. genetics    2. classical   3. elementon 4.true breed

   5. Monohybrid 6. dihybrid                        7. filial           8. genes

   9. homozygous 10. Heterozygous          11. Test

   12. 9:3:3:1