The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as inheritance strength environmental influence expressivity penetrance TRUE ANSWER : ? YOUR ANSWER : ?
How many chromosomes are there in the budding yeast (S. cerevisiae)? 20 18 17 16 TRUE ANSWER : ? YOUR ANSWER : ?
Raphanobrassica is a classical example of allopolyploidy nullisomy aneuploidy None of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following denotes a pair of contrasting characters? Alleles Genotype Homozygous Phenotype TRUE ANSWER : ? YOUR ANSWER : ?
Incase of inversion when the inverted segment of chromosome includes centromere, it is known as inverted inversion pericentric inversion paracentric inversion double inversion TRUE ANSWER : ? YOUR ANSWER : ?
In a dihybrid cross, the progeny of an Fl individual (hetero2ygous for both characters) will show a phenotypic ratio of 9:3:3:1 1:2:2:1 1:1:1:1 3:1:1:3 TRUE ANSWER : ? YOUR ANSWER : ?
Transmission of a gene from male parent to female child to male grand child is known as maternal inheritance holandric inheritance quantitative inheritance criss-cross inheritance TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is correct when a character shows continuous variation assuming a normal distribution? It is not controlled genetically Many of the variation is due to fluctuation of climate None of these It is governed by many genes with small cumulative effect TRUE ANSWER : ? YOUR ANSWER : ?
Hairy wing character of Drosophila is due to deletion in region of chromosome due to a point mutation duplication in region of chromosome due to presence of additional X-chromosome TRUE ANSWER : ? YOUR ANSWER : ?