Question

1.Mendel observed that certain characters did not assort
independently. Later researches found it to be due to :
(i) Amitosis . (ii) Linkage of characters
(iii) Dominance of one trait over the other
(iv) Crossing over
2. When a cluster of genes show linkage behaviour they :
(i) Do not show a chromosome map
(ii) Show recombination during meiosis
(iii) Do not show independent assortment
(iv) Induce cell division
3.Gene is a:
(i) Portion of RNA (ii) Linkage Group
(iii) Portion of DNA (iv) Amino acid sequence in protein
4. When a single gene influences more than one trait it is
called :
(i) Epistasis (ii) Pseudodominance
(iii) Pleotropy (iv) None of these
5. A dominant lethal gene :
(i) Allows the organism to survive and to reproduce
(ii) Allows the organism to survive but not to reproduce
(iii) Determines the sex of the organism
(iv) Kills the organism in which it is present
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Answer 1

Answer:

1.(ii) linkage

2.(iii)do not show independent assortment

3.(iv)aminoacid sequence in protein

4(iii)pleotropy

5.(iv)kill the organism in which it is present

Answer 2

Answer:

• linkage
• don't show independent assortment
• aminoacid sequence in protein
• pleotry

Explanation:

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