In humans, which genetic mechanism led to the formation of the X and Y chromosomes?
A. Translocation
B. Nondisjunction
C. Inversion
D. Reduced crossing over
E. Insertion
Answer: D
You might also like to view...
The common mud turtle experiences relatively uniform mortality rates throughout its life. It exhibits type ____ survivorship
Fill in the blank with the appropriate word.
In ______________________________, radioactive materials are implanted into the tissues to be treated.
Fill in the blank(s) with the appropriate word(s).
________ bacterial strains require nutritional supplements to grow in a minimal medium
A) Autotrophic B) Prototrophic C) Phototrophic D) Heterotrophic E) Auxotrophic
If a cell is dividing by binary fission then you know that:a
mitosis has taken place without cytokinesis. b. homologous chromosomes have already paired. c. the cyclin-Cdk complex is no longer phosphorylating enzymes. d. the cell cycle is out of control. e. the cell is prokaryotic