What is contained within the polar body?
A. corpus luteum
B. egg cell
C. primary follicle
D. discarded chromosomes
E. sperm cells
Answer: D
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It is estimated that humans can produce over 1.5 million different types of antibodies. Which of the following statements regarding this extraordinary variation is INCORRECT?
A. We inherit over 1.5 million different and distinct immunoglobulin genes from our parents at fertilization. B. V and J domains of antibody light chains are randomly joined. C. Random segments of DNA can be removed from antibody genes. D. V and J domains of antibody heavy chains are randomly joined. E. Cytosines in the variable regions of antibody genes can be converted to uracils via hypermutation.
Water molds are heterotrophic because they are parasitic on fish, plants, and insects.
Answer the following statement true (T) or false (F)
What are the two major components of cell membranes?
A. glycolipids and phospholipids B. phospholipids and proteins C. cholesterol and proteins D. phospholipids and cholesterol E. phospholipids and carbohydrates
What signals the end of the translation of an mRNA?
What will be an ideal response?