A basement membrane

a. is a cell membrane.
b. is a specialized lipid bilayer.
c. forms on the surface of plant cells.
d. supports and organizes animal cell
membranes.
e. is a sheet of non-fibrous material


D

Biology & Microbiology

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Phenotypic variation cannot be passed on from one generation to the next

Indicate whether the statement is true or false.

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A denurated protein has lost its _____

a. hydrogen bonds c. function b. shape d. all of the above

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The results of the treatment of 11 boys with SCIDX1

showed that a. SCID-X1 can be cured through genetic engineering. b. most of the treated boys were cured of the disease. c. a transplanted normal IL2RG gene can cure SCID-X1. d. our understanding of the human genome lags behind our ability to modify it. e. all of these are true.

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In animals, nitrogenous wastes are produced mostly from the catabolism of _____

A) starch and cellulose B) triglycerides and steroids C) proteins and nucleic acids D) phospholipids and glycolipids

Biology & Microbiology