Question 13 Two guinea pigs that are heterozygous for brown fur (Bb) and short fur (Ss) are
crossed. What is the probability the offspring will be brown with short fur?
1/4
0 9/16
3/8
2 1/8
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If the coding part of an mrna molecule is 1800 nucleotides (bases) in length, this molecule will contain codons and code for a polypeptide that is amino acids long.

What part of the brain is highlighted in the diagram below?

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna