Question

2 multiple choice 1 point if the environment is changing (e.g., new viruses), organisms that reproduce______have an advantage. sexually asexually 3 multiple choice 1 point the above figure shows sister chromatids separating in meiosis ii homologous chromosomes separating in meiosis i anaphase of mitosis

Explanation:

• Question 2: Sexual reproduction involves the combination of genetic material from two parents. This leads to genetic variation in offspring. In a changing environment (such as the emergence of new viruses), genetic variation is beneficial. Offspring with different genetic combinations may have traits that help them survive the new environmental challenge (e.g., resistance to a new virus). Asexual reproduction produces offspring that are genetically identical to the parent. There is little to no genetic variation. So, organisms that reproduce sexually have an advantage in a changing environment.
• Question 3: In meiosis I, homologous chromosomes (chromosomes that have the same genes at the same loci, but may have different alleles) pair up, exchange genetic material (cross - over), and then separate. In the figure, we can see pairs of chromosomes (homologous chromosomes) separating. In meiosis II, sister chromatids (duplicated copies of a single chromosome connected at the centromere) separate. In mitosis, sister chromatids also separate, and the process results in two daughter cells with the same number of chromosomes as the parent cell (in the case of diploid cells, two diploid cells). But the key here is the separation of homologous chromosomes which is characteristic of meiosis I.

Answer:

• Question 2: A. sexually
• Question 3: B. Homologous chromosomes separating in meiosis I