Monoclonal antibodies
A. are secreted by hybridomas.
B. are used in immunology lab tests and cancer therapy.
C. originate from a single B-cell clone.
D. have a single specificity for antigen.
E. All of these choices are correct.
Answer: E
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When does pattern formation begin?
a. At the moment of fertilization b. Once the zygote has divided several times. c. As maternal mRNAs are delivered to opposite ends of an unfertilized egg as it forms. d. When the maternal mRNAs are delivered to the opposite ends of the egg. e. Once the zygote has implanted on he uterine lining.
Which of Mendel's laws explains why the segregation of alleles for a gene on one chromosome does not influence the segregation of alleles for a gene on another chromosome?
A. law of population dynamics B. law of segregation C. law of random fertilization D. law of crossing-over E. law of independent assortment
What cells do not divide regularly but can be stimulated to divide when necessary?
a. Nondividing b. Mast c. Mitotic d. Facultative mitotic
Match the organism to the supergroup it belongs.
Plasmodium sp. A) Opisthokonta B) Amoebozoa C) Excavata D) Chromalveolata