Which of the following statements regarding Chlamydia is TRUE?
A. Reorganization into reticular bodies activities energy production
B. The elementary body replicates in the nucleus of the infected cell
C. The Chlamydial inclusion body contains only reticular bodies
D. The outer membrane of the elementary body is a barrier to harsh conditions
E. The reticular body is transmitted between cells
Ans: D. The outer membrane of the elementary body is a barrier to harsh conditions
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A cross in which a researcher investigates the patterns of inheritance of a single trait is called a ____
A. monohybrid cross B. dihybrid cross C. two-factor cross D. cross-fertilization E. self-fertilization
Which of the following extraembryonic membranes
is the first site of blood cell formation and the source of germ cells? a. amnion b. yolk sac c. chorion d. allantois e. none of these
Where does protein synthesis take place?
A) in the nucleolus B) on smooth endoplasmic reticulum C) on ribosomes D) in the nucleus
Which of the following processes best explains the diversity of human รก-tropomyosin proteins?
a. the wobble hypothesis b. exon shuffling c. alternative splicing d. degeneracy