HELP 11. If brown fur (B) is dominant to blonde fur b in guinea pigs, and is inh
ID: 253045 • Letter: H
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11. If brown fur (B) is dominant to blonde fur b in guinea pigs, and is inherited according to strictly Mendelian principles, what percentage of the offspring of the following cross will have blonde fur? a.0% b. 25% c. 50% d. 75% e. 100% Bb bb 2. In a monohybrid cross where tall plant height (T) is dominant over short (t), pure-breeding tall and short plants are crossed. What proportion of the F1 generation are heterozygous for this trait? a.0% b. 25% c. 50% d. 75% e. 100% 13. If two plants are heterozygous for flower color are crossed and the trait of flower color follows strict Mendelian inheritance, what proportion of their offspring will be heterozygous? a.096 b. 25% c. 50% d. 75% e. 10096 14. At what stage of mitosis do sister chromatids become individual chromosomes? a. Interphase b. Prophase c. Metaphase d. Anaphase e. Telophase 15. At what phase of the cell cycle is DNA replicated? a. Interphase b. Prophase c. Metaphase d. Anaphase e. Telophase is an enzyme that is responsible for separating the cohesion proteins of chromosomes and chromatids. It is in both mitosis and meiosis. In which of the following phases would you find active separase enzyme? a. Interphase b. Prophase, Prophase I and Prophase II c. Metaphase, Metaphase I and Metaphase II d. Anaphase, Anaphase I and Anaphase II e. Telophase, Telophase I and Telophase lIExplanation / Answer
11. (c) 50% Because blonde fur will be expressed in homozygous recessive condition.
12. (e) 100%
13. (c) 50%
14. (d) Anaphase
15. (a) Interphase
16. (d) Anaphase, Anaphase I and Anaphase II
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