The ultimate source of new alleles and genetic variability is _____________________
Fill in the blank(s) with correct word
mutations
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Why does the burning of fossil fuels cause an imbalance within the carbon cycle? What is the consequence of this imbalance? Include a diagram of the carbon cycle to illustrate your answer
What will be an ideal response?
The function of condensin is to
A. cause the chromosomes to uncompact following mitosis. B. coat the chromosomes and condense them into heterochromatin through the compaction of radial loops C. hold the DNA to the histone proteins in the nucleosome core particle. D. trigger DNA to be compacted in a nucleosome core particle. E. none of these
The efferent arterioles give rise to the ____
a. renal artery b. renal vein c. afferent arteriole d. ureter e. peritubular capillaries
The average red blood cell lives for about ________ days
A) 100 B) 150 C) 120 D) 90