Type of nuclear division that reduces the chromosome number from 2n to n; daughter cells receive the haploid number of chromosomes in varied combinations; also called reduction division
What will be an ideal response?
Meiosis
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Genomic imprinting is a result of ___________
A. Nucleosome location B. Histone activation C. DNA methylation D. Serine to leucine changes in the genetic code
Some multifactorial traits are determined by many interacting genes, each of which may have several alleles. If such a trait is measured in a population, what phenotypic pattern is expected?
A) All individuals will have the same phenotype. B) Two types of individuals will exist, and most will have the dominant phenotype. C) Different individuals will each have one of a few discrete phenotypes. D) The population will have continuous variation in phenotypic expression.
Chemotherapeutic agents that are artificially produced are most specifically referred to as ________.
A. antimicrobial agents B. synthetic drugs C. semisynthetic drugs D. antibiotics
microRNA (miRNA) and small interfering RNA (siRNA) use a similar process and proteins to regulate gene expression. Which of the following is more commonly associated with the miRNA pathway?
A) The protein Drosha is found in the miRNA pathway but not the siRNA pathway. B) In animals, the miRNA pathway usually leads to mRNA degradation, and in the siRNA pathway, the mRNA is not degraded. C) The protein complex RISC is found in the miRNA pathway but not the siRNA pathway. D) The protein Dicer is found in the miRNA pathway but not the siRNA pathway. E) The protein AGO is found in the miRNA pathway but not the siRNA pathway.