The protein chains in a complete antibody molecule are connected to each other by ________ bonds.
A. ionic
B. disulfide
C. peptide
D. None of the choices are correct.
Answer: B
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The chorion develops from the
a. trophoblast. b. blastocyst. c. blastomere. d. gastrula. e. morula.
You discover an organism that is eukaryotic, unicellular, and photosynthetic. Based on this evidence
you correctly assign this organism to the:a. Domain Bacteria. b. protist group. c. Kindgom Fungi. d. Kingdom Plantae. e. Domain Archaea.
Why is color-blindness more common in males than in females?
a. Because females would have to receive one copy of the recessive color blindness gene to actually express the trait. b. Because a male only needs to receive the recessive gene from his mother to be color-blind. c. Because color-blindness is an Y-linked trait. d. Females are hemizygous e. Males are never hemizygous
What is the importance of photosynthesis to organisms other than plants?
a. All other organisms require carbon dioxide for life processes. b. The sugars made during photosynthesis are building blocks of DNA. c. All cells must have chloroplasts in order to survive. d. Photosynthesis captures energy that other organisms access when they eat either plants or organisms that eat plants.