List three examples of animal cognition and give details explaining each.
What will be an ideal response?
Answers will vary, but excellent examples are found in Section 37.6 on page 789.
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A chromosome inherited from the male parent is called the
1.sex chromosome. 2.homologous chromosome. 3.sister chromatid. 4.paternal chromosome. 5.maternal chromosome.
The sequencing of the human genome lead to the realization that chromosome 19 contains many genes while chromosomes 13 and Y contain relatively few. This finding implies what about the density of genes in a genome?
A) Genes are not uniformly distributed and appear in clusters separated by large noncoding regions. B) Genes are uniformly distributed throughout the genome. C) Genes are uniformly distributed on chromosomes but not through the entire genome. D) Genes have no organization and randomly appear throughout the genome and chromosomes.
Which of the following statements about the behavioral effects governed by forS and forR in Drosophila is not correct?
A. The for gene encodes a cGMP-dependent protein kinase. B. This enzyme phosphorylates target proteins in the brain and affects neuronal activity. C. In the absence of food, both sitters and rovers move about in search of food. D. In the presence of food, sitters remain stationary and eat, whereas the rovers move all around the food and eat. E. The sitters usually become obese due to their stationary foraging behavior.
Equivalent segments of DNA are exchanged between chromosomes as a result of
A. segregation. B. crossing-over. C. fertilization. D. independent assortment.