In the process of gametogenesis, nondisjunction during meiosis II results in at least one pair of sister chromatids failing to separate. Consequently, this leads to the formation of two cells containing the typical haploid chromosome count (n), one cell with an additional chromosome (n + 1), and a fourth cell missing a chromosome (n - 1). To summarize, the outcome is two gametes with n, one with n + 1, and one with n - 1.
Answer:
The correct answer is -
a. - as the distribution of the phenotype diminishes
b. -cross sunflowers exhibiting the greatest phenotypic variance
Explanation:
Artificial selection refers to the practice of breeding plants or animals for particular desired traits by consciously choosing which individuals reproduce.
-Variance indicates how individual traits differ from the average characteristics of the species or how they deviate from the mean, demonstrating the degree of measurement differences.
-If the distribution remains unchanged, variance indicates no variation. However, if the spread indicates a range change in measurements, the variance will also change.