A homeotic gene regulates _____
a. where body parts form c. secondary sexual traits
b. milk production d. sperm formation
A
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The spreading of cancer cells, wound healing, and blood clotting all rely on the same type of cell movement called:
A. swimming. B. crawling. C. waving. D. whipping.
Both DNA and RNA can store information, yet DNA is the major information storage molecule in most cells. What are the advantages of using DNA for information storage instead of RNA? Select all that apply.
_____ DNA strands are more stable than RNA strands. _____ It frees up RNA for enzymatic functions. _____ DNA can make proteins directly and RNA cannot. _____ Reverse transcriptase could occur, allowing DNA to make RNA.
One of a pair of glands that produces fluid that nourishes sperm and assists movement of sperm in the female reproductive tract. _____
A) Endometrium B) Testis C) Cervix D) Uterus E) Oviduct F) Ovaries G) Vagina H) Seminal vesicle I) Penis J) Prostate gland K) Vas deferens L) Glans penis
Hominins evolved when the climate was ____.
A. wet and hotter B. wet and cooler C. dry and hotter D. dry and cooler E. similar to today