Question

Question 1: Linda and Ben request prenatal genetic testing to determine if their unborn child has Down syndrome. Which of the following tools could be used to analyze the unborn child's chromosomes?

A
centrifugal

B
karyotype

C
multifactorial

D
pedigree

question 2: What effect are multiple alleles likely to have on a population?

A
increase risk for genetic diseases

B
decrease risk for genetic diseases

C
increase phenotypic variation among a population

D
decrease phenotypic variation among a population

Answer 1

Question 1- B

Question 2- C

Step-by-step explanation:

karyotype of the child can determine if they have down syndrome as there will be 3 chromosomes at number 23 on the karyotype.

Alleles code for different phenotypic characteristics. Therefore increase in alleles means increase in phenotypic variation.