BIO148 EXAM 2 COURSEPACK
QUESTIONS & ANSWERS
The DNA molecules in muscle cells contain information about which of the following? -
Correct Answers -Eye color and skin color
How did the mutation on the right arise in the population? - Correct Answers -The
mutation randomly occurred in a cell that gave rise to sperm or egg
Genotype is _____ as phenotype is to ______ - Correct Answers -DNA sequence,
amino acid sequence
In a eukaryotic cell the DNA is enclosed in the nucleus, whereas ribosomes that make
proteins are located in the cytoplasm. How does the information in DNA needed to
specify the amino acid sequence of a particular protein make it to the cytoplasmic
protein-manufacturing centers? - Correct Answers -mRNA molecules act as the link
between genes and protein-manufacturing centers
What fraction of all the genes in your liver cells are also in your kidney cells? - Correct
Answers -All of them
What fraction of the genes in your liver are transcribed? - Correct Answers -Some
Where is RNA synthesized in eukaryotes? - Correct Answers -Nucleus
If the bottom strand of DNA is used as a template for transcription, which of the
following RNAs would be produced?
5' ATTAGCCTTTAAAT 3'
3' TAATCGGAAATTTA 5' - Correct Answers -5' AUUAGCCUUUAAAU 3'
Transcription begins at the start codon - Correct Answers -False
Which of the following are present in your liver cells? - Correct Answers -Switches to
turn on liver cell genes & kidney cell genes
Switch activators for liver cell genes
Many different types of protein molecules are made within cells. If two cells in a single
individual animal contain different proteins, then - Correct Answers -The cells contain
the same genes, promoters, and gene switches but different switch activators
QUESTIONS & ANSWERS
The DNA molecules in muscle cells contain information about which of the following? -
Correct Answers -Eye color and skin color
How did the mutation on the right arise in the population? - Correct Answers -The
mutation randomly occurred in a cell that gave rise to sperm or egg
Genotype is _____ as phenotype is to ______ - Correct Answers -DNA sequence,
amino acid sequence
In a eukaryotic cell the DNA is enclosed in the nucleus, whereas ribosomes that make
proteins are located in the cytoplasm. How does the information in DNA needed to
specify the amino acid sequence of a particular protein make it to the cytoplasmic
protein-manufacturing centers? - Correct Answers -mRNA molecules act as the link
between genes and protein-manufacturing centers
What fraction of all the genes in your liver cells are also in your kidney cells? - Correct
Answers -All of them
What fraction of the genes in your liver are transcribed? - Correct Answers -Some
Where is RNA synthesized in eukaryotes? - Correct Answers -Nucleus
If the bottom strand of DNA is used as a template for transcription, which of the
following RNAs would be produced?
5' ATTAGCCTTTAAAT 3'
3' TAATCGGAAATTTA 5' - Correct Answers -5' AUUAGCCUUUAAAU 3'
Transcription begins at the start codon - Correct Answers -False
Which of the following are present in your liver cells? - Correct Answers -Switches to
turn on liver cell genes & kidney cell genes
Switch activators for liver cell genes
Many different types of protein molecules are made within cells. If two cells in a single
individual animal contain different proteins, then - Correct Answers -The cells contain
the same genes, promoters, and gene switches but different switch activators
