The type of point mutation that results in a premature stop codon is called a _________ mutation.
nonsense
__________ is the synthesis of RNA using information in the DNA.
Transcription
Stop codons are unique because they __________.
do not code for amino acids but instead allow a releasing factor to bind to the A site of the ribosome
The TATA box is a sequence with a __________ that allows for the binding of __________ and __________.
eukaryotic promoter; transcription factors; RNA polymerase II
Genetic information of eukaryotic cells is transferred from the nucleus to the cytoplasm in the form of __________.
RNA
Insertions and deletions are called __________ mutations.
frameshift
Gene expression is __________.
the process by which DNA directs the synthesis of proteins
What is the proper order of the following events in the expression of a eukaryotic gene?
- translation
- RNA processing
- transcription
- modification of protein
3, 2, 1, 4
Eukaryotic processing of the primary transcript includes __________.
the addition of a 5ꞌ cap, a 3ꞌ poly-A tail, and the splicing out of introns
An exception to the one gene–one enzyme hypothesis is __________.
that not all genes code for enzymes; some genes code for structural proteins such as keratin
The structures called snRNPs are __________.
part of a spliceosome
The sickle-cell β-globin mutation is an example of a __________.
missense mutation
Who formulated the one gene–one enzyme hypothesis?
Beadle and Tatum
The bonds that hold tRNA molecules in the correct three-dimensional shape are __________.
hydrogen bonds
One strand of a DNA molecule has the following sequence: 3-AGTACAAACTATCCACCGTC-5.
In order for transcription to occur in that strand, there would have to be a specific recognition sequence, called a(n) __________, to the left of the DNA sequence indicated.
promoter
In eukaryotic cells, a __________ by a __________ targets a growing peptide to the endoplasmic reticulum.
signal peptide; signal-recognition particle
semi conservative replication
origin of replication
single strand binding protein
replication fork
leading strand
lagging strand
Okazaki fragment
telomere
