Pleiotropy - class-XII
Teacher asks the student to give the best example to explain pleiotropy. The correct answer is
A pleiotropic in Drosophila is that of
A $15: 1F _2 $ ratio of a cross between a wheat variety with red kernels (homozygous for two dominant genes) and another with white kernels shows
A pleiotropic gene in humans is
Occasionally, a single gene may express more than one effect. The phenomenon is called
In garden pea, gene controlling starch synthesis related to all of the given phenomenon, except
Which of the following is not a pleiotropic gene?
When one gene is responsible for affecting more than one characteristics, the phenomenon is known as
A gene that shows its effect on more than one character is
Same gene loci on two homologous chromosomes produce different phenotypes. They bear
A pleiotropic gene is one which
Gene with multiple effects is
Which is connected with multiple phenotypes?
Multiple phenotype seen in ____________.
The gene disorder phenyl ketonuria is an example for ___________.
In Drosophila gene for white eye colour is also responsible for depigmentation of body parts. It is an example of
Match the columns and choose the correct option
I | II | ||
---|---|---|---|
(a) | Dominance | (i) | Many genes govern a single character |
(b) | Codominance | (ii) | In a heterozygous organism only one allele expresses itself |
(c) | Pleiotropy | (iii) | In a heterozygous organism both alleles express themselves fully |
(d) | Polygenic inheritance | (iv) | A single gene influences many characters. |
Which of the following disorders is not caused by pleiotropic alleles _______________.
Genes showing multiple effects are
Pleiotropic gene has
Pleiotropic effect is found in
A pleiotropic gene is