Does reproductive cloning always involve somatic cell nuclear transfer?
What will be an ideal response?
ANSWER: No, there are various reproductive interventions available that produce genetically identical
individuals. One example is embryo splitting which occurs naturally in the case of identical
twins, but can also be done by technicians teasing the embryo apart from an early,
multicellular stage. However, to clone an adult animal, SCNT would be necessary.
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In some species, the sex of the future individual is determined by environmental conditions and not by sex chromosomes. Which species determines its sex by temperature?
a. birds b. fruit flies c. frogs d. rabbits e. zebras
One current area of research is to find a way to break
down the cellulose from plant materials and use the resulting a. starch. b. enzymes. c. proteins. d. sugars. e. combination of all of these.
Humans who have lost one copy of a chromosome are called ________ and generally do not survive development.
A. eusomics B. trisomics C. monosomics D. diploids
Which cells are designed to conduct electrical impulses?
A) Glial cells B) Nerve tissue C) Connective tissue D) Adipose cells E) Skeletal muscle cells