Cri du chat syndrome arises from:a
trisomy for chromosome 5.
b. deletion of part of chromosome 5.
c. a 14/21 reciprocal translocation.
d. nondisjunction.
e. a duplication of part of chromosome 15.
b
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Fragile sites appear as ____________________ or ____________________ at specific sites on a chromosome
Fill in the blank(s) with correct word
The aminoglycosides and tetracyclines specifically target the ________ interfering with ________.
A. 30S ribosomal subunit; protein synthesis B. topoisomerases; DNA replication C. tRNAs; protein synthesis D. cell membrane enzymes; transpeptidation step of peptidoglycan synthesis
When erythrocytes are old or die, how are they removed from the blood stream?
a. the liver filters them out b. they break up into small particles and are cleared out by the kidneys. c. they dissolve into liquid and circulate in that form in the blood d. they are attacked by macrophages and removed e. they stay as intact dead cells and are filtered out by the kidneys
Auxin produced by the apical meristem inhibits the germination of lateral buds
____________________ Indicate whether the statement is true or false.