MISC1
The leading and the lagging strands differ in that the:
a. leading strand is synthesized toward the replication fork and the lagging strand is synthesized in the opposite direction.
b. leading strand is synthesized by adding nucleotides to the 3′ end of the growing strand, and the lagging strand is synthesized by adding nucleotides to the 5′ end.
c. lagging strand is synthesized continuously, whereas the leading strand is synthesized in short fragments that are ultimately attached to each other.
d. leading strand is synthesized at twice the rate of the lagging strand.
To translate an mRNA requires two other types of RNA. These are:
a. tRNA and mRNA.
b. tRNA and miRNA.
c. tRNA and rRNA.
d. rRNA and siRNA.
e. snRNA and snoRNA.
What was the plant Mendel used?
pea plant
Crossing over occurs during:
Prophase
The portion of the DNA molecule that is translated is composed of?
a. Introns
b. Exons
c. Anticodons
d. Transcriptions
Where does variation exist in the general structure of the amino acid?
a. Amino group
b. Carboxyl group
c. Central carbon
d. R group
e. Hydrogen
Genes come in different versions called
Alleles
The concept that genetic information passes from DNA to RNA to protein is called the:
Central Dogma
DNA synthesis during replication is initiated from:
a. a free 5′ OH.
b. RNA primers
c. DNA primers
d. DNA polymerase I
e. Telomerase
How many introns are present on a gene that consists of four exons?
a. 2
b. 3
c. 4
d. 5
A couple has six daughters and is expecting a seventh child. What is the probability that this child will be a boy?
1/2 or 50%
If the recombination frequency between genes (A) and (B) is 5.3%, what is the distance between the genes in map units on the linkage map?
5.3 cM
What type of bonds does DNA ligase create between adjacent nucleotides?
a. Ionic
b. Metallic
c. Hydrogen
d. Phosphodiester
e. Ribonucleotide
What level of protein structure is expressed in the following: VAL-LYS-GLY?
a. Primary
b. Secondary
c. Tertiary
d. Quaternary
If an organism of genotype Aa is used for a testcross, what is the genotype of the other individual used in the cross?
aa
In a germ-line cell from a human male that is dividing, when do the X and Y chromosomes segregate?
Meiosis
Which of the following enzymes do NOT aid in unwinding of DNA for replication?
a. Helicase
b. Single stranded binding proteins
c. Primase
d. Gyrase
e. Topoisomerase
The list of events below describes intron removal and splicing during pre-mRNA processing. Please select the choice that lists the events in CORRECT sequential order.
1. The pre-mRNA is cut at the 5′ splice site.
2. Transcription of the DNA template into the pre-mRNA molecule
3. Release of lariat structure
4. Splicing together of exons
5. Transesterification reaction at the branch point
a. 1, 2, 3, 4, 5
b. 2, 1, 5, 3, 4
c. 4, 1, 3, 5, 2
d. 3, 5, 1, 2, 4
e. 5, 3, 4, 1, 2
Freckles are caused by a dominant allele. A man has freckles but one of his parents does not have freckles. What is his genotype?
Heterozygous
If a nucleic acid is found to contain 20% A and 20% T, the molecule is probably:
dsDNA