Biology Help Meiosis?

Question

Anyone who can help me with these two questions I will be enternally grateful and the first person to put the correct answers I'll give a best answer rating too. Thanks!
1) Describe 2 ways in which genetic recombination occurs during meiosis.
2) How do the products of meiosis 1 differ from those of meiosis 2?
And a more challenging one:
What are one advantage and disadvantage of asexual reproduction compared with sexual reproduction?

Answer 1

1. Genetic recombination occurs during crossing over which happens in prophase I of meiosis. Also, because of meiosis, the gametes are formed for sexual reproduction. Joining two gametes from different parents provides the second type of recombination because there is a new combination of genes in the resulting offspring.
2. Meiosis I results in two haploid daughter cells, but the chromosomes in these cells are still double-stranded (having two sister chromatids each). Meiosis II results in four haploid daughter cells, and the chromosomes in these cells are single-stranded (having only one of the sister chromatids from each chromosome).
3. Asexual reproduction has two main advantages: a) It produces offspring quickly. b) Asexual reproduction makes offspring just like the parent in favorable environmental conditions. Since the parent was well-suited to the environment, the offspring will also be well-suited.

Asexual reproduction has one main disadvantage. The offspring are genetically identical, so any environmental changes could be devastating to all of the offspring. Either they will be able to withstand the changes or they won't. If the offspring had variation, it would be more likely that some could survive when the environment changes.

Answer 2

1. Crossing over is one, not sure of a second
2. Number of chromosomes

Well, for the challenging one:
Asexual reproduction is good because you don't need to find a mate to create offspring.
BUT it is always better to swap genes with another organism - it creates more fit offspring.