Bar eye character of Drosophila is due to due to presence of additional X-chromosome deletion in region of 16A of X chromosome due to a point mutation in eye-locus duplication in region of 16A of X chromosome TRUE ANSWER : ? YOUR ANSWER : ?
Incase of inversion when the inverted segment of chromosome includes centromere, it is known as pericentric inversion paracentric inversion double inversion inverted inversion TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is correct when a character shows continuous variation assuming a normal distribution? It is governed by many genes with small cumulative effect Many of the variation is due to fluctuation of climate None of these It is not controlled genetically TRUE ANSWER : ? YOUR ANSWER : ?
The percentage of individual with a given genotype, which exhibits the associated phenotype, is defined as inheritance percent expressivity environmental influence penetrance TRUE ANSWER : ? YOUR ANSWER : ?
How does dosage compensation in Drosophila occur? Hypotranscription of female X chromosome Chimerism Hypertranscription of male X chromosome X inactivation in females TRUE ANSWER : ? YOUR ANSWER : ?
Diethyl stilbestrol (DES), a synthetic estrogen causes centriole elongation All of these chromosome lagging disruption of mitotic spindle TRUE ANSWER : ? YOUR ANSWER : ?
The degree or extent to which a given genotype is expressed phenotypically in a particular individual is defined as environmental influence inheritance strength expressivity penetrance TRUE ANSWER : ? YOUR ANSWER : ?
A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of haploid organism deficiency translocation heterozygote duplication 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 9:3:3:1 1:2:2:1 3:1:1:3 TRUE ANSWER : ? YOUR ANSWER : ?