quiz-1_key - TAKE-HOME QUIZ KEY BIS 101D Fall 2009 Name: 1....

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
TAKE-HOME QUIZ KEY BIS 101D Fall 2009 N a m e : 1. If genes assort independently, a selfed dihybrid AaBb typically produces progeny phenotypes in a ratio (assume complete dominance): (2 pt) 9 : 3 : 3 : 1 2. If genes assort independently, a testcrossed dihybrid typically produces progeny phenotypes in a ratio (assume complete dominance): (2 pt) 1 : 1 : 1 : 1 3. If genes assort independently, a trihybrid Aa Bb Cc typically produces gametes with the following genotypes: (2 pt) ABC ABc AbC Abc aBC aBc abC abc 4. A couple are both heterozygous for two autosomal recessive diseases: cystic fibrosis (CF) and phenylketonuria (PKU). What is the probability that their first child will have either CF or PKU (not both)? (2 pt) CF = ¼ x ¾ = 3/16 PKU = ¾ x ¼ = 3/16 CF or PKU = 3/16 + 3/16 = 3/8 5. In guinea pigs B = black and b = brown. In one laboratory cross the records of the parents had been lost, but the progeny was all black. Certain pairs of progeny were mated repeatedly over a number of years, each cross producing numerous offspring. Some of
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/17/2011 for the course BIS BIS 101 taught by Professor Sanders during the Winter '09 term at UC Davis.

Page1 / 4

quiz-1_key - TAKE-HOME QUIZ KEY BIS 101D Fall 2009 Name: 1....

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online