Which of the following genotype/s show/s recombinant type chromosomes in Drosophila?
a) b vg+
b) b vg
c) b+ vg
d) both b and c
What was the percentage of non-parental or recombinant type progeny when Morgan test crossed heterozygous F1 and homozygous recessive P1?
a) 53%
b) 17%
c) 83%
d) 47%
What was the percentage of parental or non-recombinant type progeny when Morgan test crossed heterozygous F1 and homozygous recessive P1?
a) 53%
b) 17%
c) 83%
d) 47%
Who discovered a method of constructing a genetic map or linkage map; an ordered list of genetic loci along a particular chromosome?
a) Carl Correns
b) Alfred H. Sturtevant
c) T.H. Morgan
d) Karl Landsteiner
Explanation: he was a student of T. H. Morgan
Sturtevant hypothesized that recombination frequencies depend upon the……..
a) the distance between non-linked genes on chromosomes
b) the distance between linked genes on chromosomes
c) the number of linked genes only
d) the type of chromosome whether autosomes or sex chromosome
What will be the result of crossing between two linked genes on same chromosome when the distance between them is greater?
a) half will be parental type and half will recombinant
b) less recombinant type will be produced
c) greater recombinant type will be produced
d) all chromosomes will be parental type
