Mendelian Principles Of Heridity
- 1.Reasons for mendel's success
- A.
Choice of study material. pea is a self pollinated crop with contrasting characters and is a short duration crop
- B.
He studied the failure of earlier workers and kept accurate pedigree record
- C.
He analysed his data mathematically and he studied one character at a time
- D.
All of the above
- 2.How many laws did Mendel gave
- A.
1, law of dominance
- B.
2, law of segregation and law of independent assortment
- C.
3, law of segregation, law of independent assortment, law of dominance
- D.
4, law of segregation, law of independent assortment, law of dominance, punnet square
- 3.On which crop did Mendel worked
- A.
Pea (Pisum sativum)
- B.
Rajma (Phaseolus vulgaris)
- C.
Hawkweed (Hieraceum)
- D.
All
- 4.Why did Mendel's work neglected
- A.
He could not prove his work on Hieraceum and honey bees
- B.
Mendel used mathematics to solve the problem which was not appreciated
- C.
He could not give cytological evidence
- D.
All
- 5.Law of segrigation
- A.
When two traits come together in one hybrid pair, the two characters do not mix with each other and are independent of each other. each gamete receives one of the two alleles during meiosis of the chromosomes.
- B.
During a dihybrid cross, an assortment of each pair of traits is independent of the other. in other words, during gamete formation, one pair of trait segregates from another pair of trait independently
- C.
Chromosomes occurred in pairs, and that different chromosomes of the haploid set were distinct from each other
- D.
Tendency of gene to remain together in the same chromosome during hereditary transmission.
- 6.Law of independent assortment
- A.
When two traits come together in one hybrid pair, the two characters do not mix with each other and are independent of each other. each gamete receives one of the two alleles during meiosis of the chromosomes.
- B.
During a dihybrid cross, an assortment of each pair of traits is independent of the other. in other words, during gamete formation, one pair of trait segregates from another pair of trait independently
- C.
Chromosomes occurred in pairs, and that different chromosomes of the haploid set were distinct from each other
- D.
Tendency of gene to remain together in the same chromosome during hereditary transmission.
- 7.How many characters of pea did Mendel selected for his experiment
- A.
5
- B.
6
- C.
7
- D.
10
- 8.In a monohybrid cross, what is the phenotypic ratio
- A.
1:3:1
- B.
3:1
- C.
1:2:1
- D.
2:1
- 9.In a dihybrid cross, what is the ratio of test cross
- A.
1:2:1
- B.
1:1
- C.
1:1:1:1
- D.
2:1:2
- 10.In a dihybrid cross, what is the phenotypic ratio
- A.
1:2:1
- B.
3:1
- C.
1:1:1:1
- D.
9:3:3:1
Questions: 24 | Attempts: 271 | Last updated: Dec 31, 2012
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