Assume that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur
normally. Consider how the absence of crossing over would affect the outcome of meiosis. Which of the following statements about meiosis would be true if crossing over did not occur? a. The daughter cells of meiosis I would be diploid, but the daughter cells of meiosis II would be haploid.
b. The two sister chromatids of each replicated chromosome would no longer be identical.
c. The four daughter cells produced in meiosis II would all be different.
d. The two daughter cells produced in meiosis I would be identical.
e. There would be less genetic variation among gametes.
f. Independent assortment of chromosomes would not occur.
<em>Q1. Assume that an organism exists in which crossing over does not occur, but that all other processes associated with meiosis occur normally. Consider how the absence of crossing over would affect the outcome of meiosis.</em>
Selective breeding involves choosing parents with particular characteristics to breed together and produce offspring with more desirable characteristics. Humans have selectively bred plants and animals for thousands of years including: crop plants with better yields.
Las sociedades industrializadas generan una gran cantidad de productos que no son imprescindibles para el ser humano, por lo que se usan un tiempo y son desechados.
