Respondus Lockdown Browser+ Webcam
UPDATED Exam Questions and
CORRECT Answers
A cell after the end of meiosis 2 and cytokinesis can be described as ?
A. Having one fourth the chromosomes of the original parent cell
B. Having one half of the chromosomes and one half the DNA of the original cell
C. Having an identical number of chromosomes as the original parent cell
D. having an identical DNA contents as the original parent cell - CORRECT ANSWER -
Answer: B. having one-half the chromosomes and one-half the DNA of tye original parent cell
A dominant allele ?
A. Is the best allele in a population
B. can only show its effect if 2 copies are present
C. Show it's effect even if only copy is present
D: is the most common allele in a population - CORRECT ANSWER - Answer: C. shows
it's effect even if only one copy is present
A group of offspring displaying an approximately 3:1 phenotypic ratio for 2 particular traits of a
character indicates ?
A. That the parents were both heteroszygous for alleles controlling the traits
B. That the the parents were true-breeding for different traits
C. The blending inheritance of traits has occurred
D.that each offspring has the alleles for each of the traits - CORRECT ANSWER -
Answer: A. That the parents were both heterozygous for alleles controlling the traits
, A human cell containing 22 autos ones and Y chromosome is ?
A. A zygote
B. A somatic
C.a sperm
D. An egg - CORRECT ANSWER - C. A sperm
A particular triplet of bases in the template strand of DNA is 5' AGT 3'. The corresponding codon
for the mRNA transcribed is?
A. 3'ACU 5'
B. 5'UCA 3'
C. 3'UCA 5'
D. 5' TCA 3' - CORRECT ANSWER - Answer: C. 3'UCA 5'
A particular triplet of bases in the template strand of DNA is AAA. The anticodon on the tRNA
that binds the mRNA codon is
A. UUU
B.TTT
C.GGG
D.AAA - CORRECT ANSWER - Answer: D.AAA
A sexually reproducing animal has two unlinked genes, one for head shape (H) and one for tail
length (T). Its genotype is HhTt. Which of the following genotypes is possible in a gamete from
this organism?
A.Hh
B.HT