During muscle contraction,
A) only the thin filaments shorten.
B) only the sarcomere shortens.
C) only the thick filaments shorten.
D) both the thick filaments and the sarcomere shorten.
Answer: B
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For most eukaryotic genes, translation begins in the____
a. cytosol b. nucleolus c. nucleus d. mitochondria e. Golgi apparatus
The animal in the above photograph was adversely
affected by __________ and is making a comeback thanks to __________. a. global cooling; heat producing chemical added to their diet b. sexually transmitted viruses; a new vaccine c. limited number of natural cavities; artificial nesting boxes d. high incidence of males being born; transplantation of females from other areas e. all of these
Unlike most solids, solid ____ is less dense than its liquid form
Fill in the blank(s) with the appropriate word(s).
At which stage of mitosis are chromosomes usually photographed in the preparation of a karyotype?
A) prophase B) metaphase C) anaphase D) interphase