Assume that a cross is made between AaBb and aabb plants and that the offspring occur in the following numbers: 106 AaBb, 48 Aabb, 52 aaBb, 94 aabb. These results are consistent with which scenario described?
A) The genes are unlinked.
B) There is a very high coefficient of coincidence.
C) In the AaBb parent, the dominant alleles are on one homolog and the recessive alleles are on the other.
D) In the AaBb parent, each homolog has one dominant allele and one recessive allele.
E) It is impossible to tell.
Answer: C
You might also like to view...
Cilia and flagella bend because of _____
A) conformational changes in ATP that thrust microtubules laterally B) a motor protein called radial spokes C) the quick inward movements of water by osmosis. D) a motor protein called dynein
________ is to xylem as ________ is to phloem
A) Sclerenchyma cell; collenchyma cell B) Apical meristem; vascular cambium C) Vessel element; sieve-tube member D) Cortex; pith E) Vascular cambium; cork cambium
In humans, if a preembryo splits during the first 2 weeks of development, _____ are usually formed.
A. polar bodies B. secondary oocytes C. fraternal twins D. identical twins E. embryonic discs
A definitive host harbors which stage of a parasite?
A) Miracidium B) Larva C) Adult D) Cyst E) All of the above