Unequal crossing over _____
a. is an abnormal crossover event that occurs during mitosis
b. occurs between different points on homologous chromosomes
c. generates a single point mutation
d. is the result of alternative splicing
e. occurs between heterologous chromosomes
ANSWER: b
You might also like to view...
What is true about the half-life of 14C?
A. The half-life never changes over time. B. It takes 5,730 years for half of 14C to be converted to 14N. C. It can be employed in the radioisotopic dating of fossils. D. All of these are correct.
Scientists use ____ sampling to estimate the population size of mobile animals.
A. mark–recapture B. random C. plot D. base E. homogeneous
Genome sequencing of our human ancestor, Neanderthals (Homo neanderthalensis), revealed that Neanderthals have a FOXP2 gene with the same two amino acid changes observed in H. sapiens FOXP2. What can be concluded based on this finding? (Check all that apply.)A) Neanderthals evolved from H. sapiens.B) H. sapiens evolved from Neanderthals.C) Neanderthals may have had the ability to use language.D) These two amino acid changes arose prior to the common ancestor of Neanderthals and H. sapiens.E) Verbal speech was impossible for Neanderthals.
What will be an ideal response?
During ________, a ribosome assembles a polypeptide whose amino acid sequence is specified by the nucleotide sequence in a molecule of mRNA.
A. transcription B. translation C. replication D. posttranscriptional modification