AP BIOLOGY

THE MOLECULAR BASIS OF INHERITANCE

THE HUMAN GENOME

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following best describes genetic counseling?
A
identifies suitable embryos
B
uses gel electrophoresis
C
may use a pedigree
D
shows locations of genes
Explanation: 

Detailed explanation-1: -A pedigree shows relationships between family members and indicates which individuals have certain genetic pathogenic variants, traits, and diseases within a family as well as vital status. A pedigree can be used to determine disease inheritance patterns within a family.

Detailed explanation-2: -Pedigrees are used to analyze the pattern of inheritance of a particular trait throughout a family. Pedigrees show the presence or absence of a trait as it relates to the relationship among parents, offspring, and siblings.

Detailed explanation-3: -Pedigree analysis is done to determine if the mode of inheritance is recessive, dominant, partial dominant, autosomal, mitochondrial or sex-linked. Moreover, it also determines the probability of an individual or offspring being affected in the given cross.

Detailed explanation-4: -Pedigree drawing tools allow the comprehensive collection of all family member medical history details and, most importantly, make this information easily searchable by genetics experts to identify risk and prevent disease.

There is 1 question to complete.