Anaphase II is essentially the same as mitotic anaphase except that in anaphase II ________ and in mitotic anaphase ________
A) the cells are diploid... the cells are haploid
B) chromosomes line up double file in the middle of the cell... chromosomes line up single file in the middle of the cell
C) crossing over occurs... crossing over does not occur
D) the cells are haploid and sister chromatids separate... the cells have the same number of chromosomes as the original cell and sister chromatids separate
D
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Severe pain in the lower right abdomen along with fever and nausea is often a sign of an infection in this structure.
A) Large intestine B) Stomach C) Esophageal cancer D) Appendix E) Mouth F) Salivary glands G) Rectum H) Cirrhosis I) Gallbladder J) Small intestine
The evolutionary innovation that first appeared in arthropods and is characteristic of the most successful of all animal groups is that of
A. bilateral symmetry. B. coelomic body architecture. C. jointed appendages. D. segmentation. E. three primary types of tissues.
Except in rare cases, genes are usually passed from generation to generation within a species. This process is called:
A. horizontal gene transfer B. vertical gene transfer C. synteny D. transgenesis
Which of the following is necessary in applying the molecular clock approach to determine when HIV first infected humans?
a. A relatively consistent rate of evolutionary change in the virus b. Multiple samples of the virus taken in different years c. RNA nucleotide sequence data from the virus d. All of the listed responses are correct. e. None of the listed responses are correct.