Which of these is not gametic isolation?
A) Female stigma destroys germinating pollen grain.
B) Lily sperm cannot fertilize tulip eggs.
C) Male and female sex organs do not fit together.
D) Pollen grain does not germinate on stigma (female structure).
Answer: C
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Which of the following applications seeks to reveal differences in the number of tandem repeats among individuals for
the purposes of identification?
a. genomics b. DNA libraries c. DNA hybridization d. DNA profiling e. DNA probe analysis
The columns in the accompanying figure represent F (for female), C (for children), and M (for male). The presence of the band marked with arrow #2, shows that:
a. this DNA sequence in the children is a mutation.
b. this DNA sequence in the children is inherited from their mother.
c. this DNA sequence in the children is inherited from their father.
d. this sequence in the children is inherited from both their mother and father.
e. individual F is not the mother of these children.
Sporophyte spores are produced via meiosis in a protective structure called a
a. sporocyte b. sporangium c. sporocyst d. archegonium e. antheridium
A viral genome may consist of __________
a. double-stranded DNA b. single-stranded DNA c. double-stranded RNA d. single-stranded RNA e. Any of the above