13. Mendelian Genetics
Pedigrees
13. Mendelian Genetics
Pedigrees
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- Multiple ChoiceA man has a pointed frontal hairline known as a widow's peak. This trait is thought to be controlled by a dominant allele. His wife lacks a widow's peak, and their son has a widow's peak. (W: widow's peak; w: no widow's peak). The son is curious about whether his father is homozygous or heterozygous for the widow's peak trait. Which of the following facts would allow him to know?1152views1rank
- Multiple ChoiceTay-Sachs disease runs in Rebecca's family. On a family pedigree, she saw a shaded circle. This represented a __________.1082views
- Multiple Choice
Diagrams depicting family relationships and phenotypes for a genetic disorder are:
872views18rank - Textbook Question
When a trait is highly heritable, ________.
a. It is influenced by genes
b. It is not influenced by the environment
c. The variance of the trait in a population can be explained primarily by variance in genotypes
d. A and C are correct
e. A, B, and C are correct
1050views - Multiple ChoiceIn a pedigree chart, how many females are represented as having the trait if there are three shaded circles?203views