Prenatal diagnosis techniques such as amniocentesis and chorionic villus sampling remove cells produced by the embryo. These cells are then used ____.
a. to treat diseases
b. for implantation to produce pregnancy
c. to develop embryonic stem cells
d. to test for the presence of mutant alleles or chromosomal alterations
e. for cloning
ANSWER: d
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Microorganisms are used in which of the following industries?
A) antibiotic B) chemical C) food, beer, and wine D) all of the above
If long or round are homozygous forms of an incompletely dominant gene and oval is the phenotype of
the heterozygote, give the F2 ratio of the cross between long and round (both genotype and phenotype). What will be an ideal response?
A host species that harbors a developmental stage of a parasite, but in which the parasite does not reach maturity, is referred to as a(n) ________ host
Fill in the blank(s) with correct word
Hox genes are a family of transcription factors that regulate development throughout the animal kingdom. Studies of Hox genes in mice and Drosophila showed that many Hox genes are conserved between both species, and several Hox genes duplicated into new genes with novel functions within mice. Some Hox genes have even lost all function. Hox genes provide an example of which of the following? Check all that apply.A) orthologsB) paralogsC) heterologuesD) pseudogenes
What will be an ideal response?