Raphanobrassica is a classical example of nullisomy allopolyploidy aneuploidy None of these TRUE ANSWER : ? YOUR ANSWER : ?
Diethyl stilbestrol (DES), a synthetic estrogen causes All of these centriole elongation disruption of mitotic spindle chromosome lagging TRUE ANSWER : ? YOUR ANSWER : ?
Exchange of segments between non homologous chromosomes is best known as crossing over translation translocation recombination TRUE ANSWER : ? YOUR ANSWER : ?
A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of translocation heterozygote deficiency duplication haploid organism TRUE ANSWER : ? YOUR ANSWER : ?
How many chromosomes are there in the budding yeast (S. cerevisiae)? 18 17 16 20 TRUE ANSWER : ? YOUR ANSWER : ?
A map of chromosomes that utilizes cloned and sequenced DNA fragments rather than genetic markers is known as a cloning map a physical map a genetic map none of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is correct when a character shows continuous variation assuming a normal distribution? Many of the variation is due to fluctuation of climate It is not controlled genetically None of these It is governed by many genes with small cumulative effect TRUE ANSWER : ? YOUR ANSWER : ?
Incase of inversion when the inverted segment of chromosome includes centromere, it is known as double inversion inverted inversion pericentric inversion paracentric inversion TRUE ANSWER : ? YOUR ANSWER : ?
An odd number of cross overs in inverted region will result into formation of a dicentric chromatid and acentric chromatid at anaphase I incase of pericentric inversion double inversion paracentric inversion none of these TRUE ANSWER : ? YOUR ANSWER : ?