X- linked recessive gene is
always expressed in male
always expressed in femlae
lethal
sub- lethal
A.
always expressed in male
X- linked genes are represented twice in female and once in male. The recessive X- linked genes have characteritic criss- cross inheritance, ie, male transmits his X- linked recessive genes to his grandson through his daughter.
Balbiani rings are the structural features of
allosomes
polytene chromosomes
autosomes
Lampbrush chromosomes
Which of the following is used as a best genetic vector in plants?
Bacillus thurengiensis
Agrobacterium tumifaciens
Pseudomonas putida
All of the above
Presence of tail in a child is an example of
atavism
divergent evolution
convergent evolution
mutation