How many pigments are present in the samples derived from individuals that are heterozygous for shell color?
a. 1
b. 2
c. 3
b
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Complete the following sentence. An intron is _______________________
A. a protein that is clipped out post- translationally B. RNA that is removed during the processing of an RNA molecule and remains inside the nucleus C. part of an intact, mature mRNA that leaves the nucleus D. a transfer RNA that binds to the codon E. a series of amino acids at the end of a new polypeptide that directs transcription to the ER
When two atoms share a pair of electrons, the bonding is referred to as:
A. ionic. B. covalent. C. unstable. D. hydrogen.
The Florida panther, as a symbol of Florida's conservation campaign, serves as a(n)
A. indicator species. B. flagship species. C. endemic species. D. keystone species. E. umbrella species.
Recombination at the synaptonemal complex always results in ____
a. two changed and two unchanged chromatids b. four unchanged chromatids c. four changed chromatids d. a random number of changed vs. unchanged chromatids e. one unchanged and three changed chromatids