Grade Assured.
Within a homologous pair of chromosomes, how many different alleles for a particular gene
might a diploid individual have (maximum)?
A) 1
B)2
C)3
D)4
E)depends on the gene size correct answers B. 2
Which of the following is responsible for the uniform diameter of the DNA double helix?
A. The presence of an H (rather than OH) on the 2' carbon
B. The consistent paring of bases dictated by Chargaff's rule
C. The consistency of the alternating sugar-phosphate groups along the DNA backbone
D. The Balance between the number of Hbonds between bases
E. All of the above correct answers B. The consistent paring of bases by Chargaff's rule
Which of the following is correct?
(below "=>" means leads directly to the production of...)
A. Replication => DNA
B. Transcription => Protein
C. Transcription => RNA
D. Translation => RNA correct answers C. Transcription => RNA
,Which of the following strand of DNA (5'-GCTAGC-3') would be paired with the sequence on
the other strand of a double stranded DNA molecule?
A. 3'-GCTAGC-5'
B. 5'-GCTACC-3'
C.3'-CGAUCG-5'
D.3'-CGATCG-5'
E.5'-CGATCG-3' correct answers D. 3'-CGATCG-5'
Synthesis of DNA requires all but which of the following?( which is not needed?)
A. A free 3' Carbon
B. DNA Polymerase
C. Ribosome
D. Primase
E. dNTP's (nucleotides) correct answers C. Ribosome
Francine forgot to add the primers to her PCR. The reaction did not work because the Taq DNA
polymerase....
A. will not be able to unwind the template DNA .
B. will not be able to form a phosphodiaster bond because there is no energy.
C. would not have a 3'OH group.
D. will not be able to extend the new DNA strand because there is no template
E. C and D correct answers C. would not have a 3' OH group
Most of the thime, offspring of sexually reproducing organisms look differnt. This is MOSTLY
due to which process?
, A. Independent assortment in metaphase I
B. Independent assortment in metaphase II
C. crossing over in Prometaphase II
D. splitting of sister chromatids in Meiosis II correct answers A. Independent assortment in
metaphase I
The phases of the cell cycle, in order are
A. G1, S, G2, Mitosis
B. Mitosis, G1, G2, S
C. G2, Mitosis,S, G1
D. G1, G2, S, Mitosis
E. Prophase, Metaphase,Prometaphase, Telophase, Anaphase correct answers A. G1, S, G2,
Mitosis
Which of the following is not occurring in G1 (during normal cell function)?
A. translation
B. DNA replication
C.gene expression
D. transcription
E. none of the above correct answers B. DNA replication
The HPV vaccine can prevent cancer caused by viral inactivation of Rb in both women and men.
correct answers True
GCCGACG acts as the initiation site for a gene. This sequence is.......