If an organism with 64 chromosomes mates with a closely related organism with 62 chromosomes, the most likely
result will be ____.
a. many unhealthy offspring due to hybrid breakdown
b. many unhealthy offspring due to hybrid inviability
c. no offspring due to hybrid sterility
d. sterile offspring due to hybrid inviability
e. sterile offspring due to hybrid sterility
ANSWER: e
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Human traits are controlled only by the genetic material found in the 46 chromosomes
a. True b. False Indicate whether the statement is true or false
What tool do geneticists use to study the
genetics of families through generations?
a. Punnett squares b. pedigrees c. karyotypes d. DNA profiles e. fossil analyses
In addition to producing or resisting movement, an important function of muscle is generation of heat.
a. true b. false
The bonds between the atoms that make up water molecules are called
a. covalent bonds. b. hydrogen bonds. c. ionic and covalent bonds. d. covalent and hydrogen bonds.