Lab 6

Question 1

Turner Syndrome

Answer 1

Missing second X chromosome. Short stature, ovarian insufficiency, hearth defects.

Question 2

Down Syndrome

Answer 2

3 #21 chromosomes. Heart defects, Alzheimers, hypertension, gastrointestinal issues

Question 3

Klinefelter Syndrome

Answer 3

2 X chromosomes in men. Interferes with testosterone production, small testes

Question 4

Are the dominant phenotypic characteristics always the most common in a population?

Answer 4

No

Question 5

Why are sex linked recessive traits more common in males

Answer 5

To have a sex-linked recessive female you would need a carrier mother and recessive father

Question 6

Polygenic Inheritance Calculations

Answer 6

Start with the given minimum and add given number for each dominant allele in the genotype

Question 7

Percentage Recombination Formula

Answer 7

% recombination = ((total# recombinants)/(total # offspring)) x 100%

Question 8

If traits are inherited in Mendelian Fashion, are the dominant phenotypes most common in a population

Answer 8

No

Question 9

Polygenic Inheritance Distribution

Answer 9

Normal/Bellcurve