Mutagens that can cross the placenta of a pregnant woman and cause a spontaneous abortion or birth defects in the fetus.
Answer: Teratogens
Biology & Microbiology
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In the accompanying figure, the structure labeled “B” is a ____
a. muscle fiber b. sarcoplasmic reticulum c. mitochondria
d. myofibril e. Z line
Biology & Microbiology
Synaptonemal complex forms during
A) leptonema. B) zygonema. C) pachynema. D) diplonema. E) diakinesis.
Biology & Microbiology
A(n) ________ involves drug testing on humans
Fill in the blank(s) with correct word
Biology & Microbiology
Which of the following prevents muscle contraction by regulating the interaction between the
myofilaments? a. the troponin-tropomyosin complex b. actin c. actomyosin d. phosphate e. myosin
Biology & Microbiology