If 2 spot (S) is dominant to 4 spot (s), give the
genotypes for the parents in the following crosses:
(a) 2 spot x 2 spot yields 2 spot and 4 spot
(b) 2 spot x 4 spot yields only 2 spot
(c) 2 spot x 4 spot yields 2 spot and 4 spot
(d) 2 spot x 2 spot yields only 2 spot
(e) 4 spot x 4 spot yields only 4 spot What will be an ideal response?
Answer: (a) Ss x Ss ———> S__ + ss
(b) SS x ss ———> Ss
(c) Ss x ss ———> Ss + ss
(d) SS x S__ ———> S__
(e) ss x ss ———> ss
You might also like to view...
Vascular cambium is capable of producing:
A. primary xylem only. B. primary phloem only. C. secondary xylem only. D. secondary phloem only. E. secondary xylem and phloem.
Which of the following processes is closely
associated with the normal functioning of the “cystic fibrosis” gene?
a. water osmosis b. sodium - chloride pumping c. protein diffusion d. pH regulation e. polypeptide packaging
During receptor-mediated endocytosis, ____
a. plasma membrane receptors bind molecules to be expelled b. a small channel forms beneath the receptors c. a pit opens inside a cell d. a vesicle forms e. a vesicle is destroyed
What are the differences between complete dominance and codominance?
What will be an ideal response?