Raphanobrassica is a classical example of None of these aneuploidy nullisomy allopolyploidy TRUE ANSWER : ? YOUR ANSWER : ?
In an organism, the chromosome number is maintained constant because of DNA duplication synapsis crossing over independent assortment 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 It is governed by many genes with small cumulative effect None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following denotes a pair of contrasting characters? Genotype Homozygous Alleles Phenotype TRUE ANSWER : ? YOUR ANSWER : ?
How many chromosomes are there in the budding yeast (S. cerevisiae)? 20 17 16 18 TRUE ANSWER : ? YOUR ANSWER : ?
Transmission of a gene from male parent to female child to male grand child is known as holandric inheritance quantitative inheritance criss-cross inheritance maternal inheritance TRUE ANSWER : ? YOUR ANSWER : ?
In a dihybrid cross, the progeny of an Fl individual (hetero2ygous for both characters) will show a phenotypic ratio of 1:1:1:1 1:2:2:1 9:3:3:1 3:1:1:3 TRUE ANSWER : ? YOUR ANSWER : ?
Incase of inversion when the inverted segment of chromosome includes centromere, it is known as paracentric inversion double inversion inverted inversion pericentric inversion TRUE ANSWER : ? YOUR ANSWER : ?
Hairy wing character of Drosophila is due to due to a point mutation deletion in region of chromosome due to presence of additional X-chromosome duplication in region of chromosome TRUE ANSWER : ? YOUR ANSWER : ?