1) which of the statements below is not true about meiosis and/or mitosis. a) one reason meiosis i is different from mitosis because homologous pairs of chromosomes line up next to each other and then separate. b) daughter cells are produced in meiosis with half the number of chromosomes as the parent cell. c) no exchange of genetic material is exchanged during meiosis, so there is no genetic diversity as a result of this process. 6) which of the following is a true statement about crossing over? a) crossing over occurs in both mitosis and meiosis i b) crossing over occurs during prophase i of meiosis; because of crossing over, genetic variation in the resulting gametes is increased. c) crossing over occurs in telophase ii of meiosis; it decreases the genetic variability in the gametes produced.

1) The correct answer would be option C.

Meiosis is a type of cell division which results in the production of four daughter cells from a single parent cell. Each daughter cell contains half the chromosomes present in the parent cell.

In addition, the event of crossing over also takes place during prophase I of meiosis I. It results in the exchange of genetic material between non-sister chromatids of homologous chromosomes.

6) The correct answer would be option B.

Crossing over is the event that takes place during prophase I especially during the pachytene stage. The exchange of genetic material between non-sister chromatids of homologous chromosomes takes place during crossing over. It helps in increasing genetic diversity among the population.

hydroxyl -oh

alcohols, always polar, can form hydrogen bonds with h2o molecules

carboxyl -cooh  

cargoxylic acids, has acidic properties which is a source of hydrogen ions, found in cells in ionized for with a charge of oh-1

carbonyl > co

ketone if within skeleton, aldehyde if group is at the end of skeleton, k & a may be structural isomers, it determines 2 sugars (ketose & aldose)

amino -nh2

amines, acts as a base, it can pick up h+ ions from surrounding solution, ionized with charge of 1+

methyl ch2

addition to rna/dna affects and gene expression

phosphate -opo3 ²⁻

organic phosphates, contributes to negative charge to, molecule that it is a part of, and potential to react with h20

sulfhydryl -sh

thiols, cross-linking stabilize the protein, and it is structure