Red blood cells carry CO2 back to the lungs.
a. true
b. false
Answer: b. false
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Which environment represents the largest pool of microbial genes?
A. Oceans B. Soil C. Humans and animals D. Freshwater lakes E. Rainforest
Over the past 600 million years, the overall trend in the number of species has been ________
Fill in the blank(s) with correct word
Which of the following is a membranous organelle that chemically modifies and ships proteins to other organelles or out of the cell?
A) chloroplast B) mitochondria C) lysosome D) Golgi complex
How do different strains of E. coli can reveal different linkage arrangements of genes in Hfr crosses?
A) In different Hfr strains, different genes will be transferred based on where the centromere resides. B) Different strains may have different F factors and therefore different initiation points for chromosome transfer. C) They do not. All Hfr strains are identical. D) Hfr strains will demonstrate different areas of recombination, due to dominance and recessiveness of genes. E) In different Hfr strains, genes can be in different order on the chromosome.