lecture6

lecture6 - 8/13/08 Clicker Question 61 You discover a new...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 8/13/08 Clicker Question 61 You discover a new amphibian and name the sex chromosomes A and B. If the female is heterogametic and the male is homogametic, then what would be the chromosome arrangement of sex chromosomes in the adult? A. B. C. D. female AA and male BB female AB and male AB female AB and male BB female BB and male AB Clicker Question 62 Which statement best describes human sex determination? A.Females are heterogametic. B.Individuals with a Y chromosome are male. C.Individuals with two X chromosomes are female. D.Individuals with at least twice as many X chromosomes as Y chromosomes are female. E.Individuals with one X chromosome are male. 1 8/13/08 Clicker Question 63 Which of the following best describes the Lyon hypothesis? A. Barr bodies are inactivated X chromosomes. B. The paternal X chromosome of a female is inactivated in an early embryonic stage. C. The maternal X chromosome of a female is inactivated in an early embryonic stage. D. One of the two female X chromosomes is randomly inactivated in an early embryonic stage. E. Each cell of a female randomly inactivates one X chromosome shortly after mitosis. Clicker Question 64 What is the sexual phenotype of Drosophila that has XXXY sex chromosomes and two sets of autosomes? A. male B. female C. metamale D. metafemale E. intersex 2 ...
View Full Document

Ask a homework question - tutors are online