When AABBcc is crossed with AaBbCc then the ratio of hybrid for all three genes is:
1. 1/8
2. 1/4
3. 1/16
4. 1/32
Among fraternal twins, one baby is haemophilic while the baby's brother is normal. Which statement is true:
1. Baby is male
2. Baby is female
3. Mother is heterozygous
4. Mother is homozygous
Minor change in a gene's structure is called:
1. Reversible mutation
2. Point mutation
3. Forward mutation
4. Backward mutation
According to Mendelism which character is showing dominance:
1. Terminal position of the flower
2. Green colour in the seed coat
3. Wrinkled seed
4. Green pod colour
Due to the cross between TTRr × ttrr the resultant progenies showed how many percent plants tall, red flowered:
1. 50%
2. 75%
3. 25%
4. 100%
Which of the following is the correct match:
1. Down Syndrome = 21st Chromosome
2. Sickel cell anaemia = X – Chromosome
3. Haemophilia = Y – Chromosome
4. Parkinson Disease = X & Y Chromosomes
Irregularity is found in drosophila during organ differentiation for example- in place of the wing, long legs are formed. Which gene is responsible for it:
1. Double dominant gene
2. Homeotic gene
3. Complimentary gene
4. Plastid
Change in the sequence of nucleotides in DNA is called:
1. Mutagen
2. Mutation
3. Recombination
4. Translation
Which statement is correct:
1. | A. indica is the largest wild honey bees |
2. | Wax is the waste material of honey bees |
3. | C.V. Fritsch discovered the transmission methods in honey bees |
4. | Drone of the honey bee is diploid |
Which of the following is the example of a sex-linked disease:
1. AIDS
2. Colour blindness
3. Syphilis
4. Gonorrhoea