Amino acids are joined together in proteins by
a. hydrogen bonds.
b. peptide bonds.
c. anticodons.
d. wobble effects.
e. codon bonds.
b
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What is wood?
a. secondary xylem that has accumulated outside a cylinder of vascular cambium b. secondary xylem that has accumulated inside a cylinder of vascular cambium c. primary xylem that has accumulated outside a cylinder of vascular cambium d. primary xylem that has accumulated inside a cylinder of vascular cambium e. vascular cambium cells
Considering the diseases and conditions described in this chapter, those transmitted by respiratory droplets are caused by ________.
A. viruses B. fungi C. bacteria D. All of these answers are correct.
The first fossil evidence of vascular tissue is seen in the
A. tree ferns. B. rhyniophytes. C. bryophytes. D. green algae. E. tracheophytes.
A color-blind, chromatin-positive male child (one Barr body) has a maternal grandfather who was color blind. The boy's mother and father are phenotypically normal. What needed to occur to have this genetic outcome?
A) The mother is homozygous recessive and underwent nondisjunction in meiosis I or II. B) The mother must be heterozygous and underwent nondisjunction at meiosis II. C) The chromosomal doubling effect of meiosis II occurred in the father. D) Nondisjunction in meiosis I of the father occurred. E) The mother must be heterozygous and underwent nondisjunction at meiosis I.