Which of the following techniques would be used to prepare a fetal karyotype to detect trisomy 21 (Down syndrome)?

A) ASO test
B) RFLP analysis
C) Microarray analysis
D) Chorionic villus sampling
E) STR analysis


D

Biology & Microbiology

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Infectious hepatitis is caused by infection with hepatitis ________ virus

A) A B) B C) C D) E

Biology & Microbiology

What is true of the hormone glucagon? Check all that apply.

_____ It helps to maintain homeostatic levels of glucose. _____ It is synthesized by the pancreas when blood sugar levels decrease. _____ It is synthesized in the same endocrine gland that secretes insulin. _____ It stimulates appetite.

Biology & Microbiology

Cytotoxic T cells destroy cancerous cells by

A. forming the membrane attack complex. B. releasing vesicles containing perforin. C. activating natural killer cells. D. opsonization. E. secreting cytokines.

Biology & Microbiology

Assume that an organism has a diploid chromosome number of 14. There would be 28 chromosomes in a tetraploid

Indicate whether the statement is true or false

Biology & Microbiology