Which of the following is not an example of nonhuman culture?
A. birds learning from each other how to peck
through aluminum caps of milk bottles
B. adult meerkats teaching their young how
handle their prey
C. chimpanzees using tools to catch insects
D. a Japanese baby learning how to speak
Japanese
E. None of the answer options is correct.
D
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The primary structure in a protein
A. refers to the helical folding of a protein. B. refers to two or more polypeptides linked to one another. C. refers to the sequence of amino acids. D. refers to the initial folding of a protein.
Phage T4 gains release from the infected host cell like many other double stranded DNA phages by interfering with the activity of enzymes that synthesize peptidoglycan.
Answer the following statement true (T) or false (F)
The physical traits of an organism are called its __
A. phenotype B. allele C. genotype D. gene
In a lysosomal storage disease, newly synthesized lysosome hydrolases are secreted from the cells rather than being delivered to the lysosomes. What is one possible mechanism for this result?
A) The cis-Golgi network lacks a proton gradient. B) The ER is unable to produce lysosomal vesicles. C) Lysosomal enzymes are not phosphorylated in the rER. D) Mannose is not phosphorylated in the cis-Golgi network. E) All the hydrolase genes are mutated, resulting in synthesis by ribosomes free in the cytoplasm rather than on the endoplasmic reticulum membrane.