Point mutation is induced by:
1. Adenine
2. Guanine
3. 3-cytosine
4. 5-bromouracil
Multivalent chromosome is formed by:
1. Inversion
2. Deletion
3. Reciprocal translocation
4. Point mutation
What change occurs by changing one base in DNA:
1. Always a change of one amino acid in protein
2. Change in complex sequence of amino acid
3. Always a change in property of protein
4. Does not necessarily change the phenotype
Minor change in a gene's structure is called:
1. Reversible mutation
2. Point mutation
3. Forward mutation
4. Backward mutation
Most of the mutations are:
1. Harmful
2. Harmful and recessive
3. Beneficial
4. Dominant
Change in the sequence of nucleotides in DNA is called:
1. Mutagen
2. Mutation
3. Recombination
4. Translation
One of the parents of a cross has a mutation in its mitochondria. In that cross, that parent is taken as a male. During the segregation of progenies that mutation is found in:
1. None of the progenies
2. All the progenies
3. 50% of the progenies
4. 1/3 of the progenies