5 Written questions
5 Matching questions
- a Nongenetic chemical changes in histones or DNA that alter gene function without altering the DNA sequence.
- b (1) In general, any process in a diploid or partly diploid cell that generates new gene or chromosomal combinations not previously found in that cell or in its progenitors. (2) At meiosis, the process that generates a haploid product of meiosis whose genotype is different from either of the two haploid genotypes that constituted the meiotic diploid.
- c An individual organism homozygous for one or more recessive alleles; used in a testcross.
- d A member of a pair of homologous chromosomes.
- e The phenotype shown by a heterozygote.
5 Multiple choice questions
- The two strains or individual organisms that constitute the start of a genetic breeding experiment; their progeny constitute the F1 generation.
- A double heterozygote such as A/a · B/b.
- A molecule composed of a nitrogen base, a sugar, and a phosphate group; the basic building block of nucleic acids.
- The occurrence in a population (or among populations) of several phenotypic forms associated with alleles of one gene or homologs of one chromosome.
- The substance of chromosomes; now known to include DNA and chromosomal proteins.
5 True/False questions
cytoplasmic segregation → Segregation in which genetically different daughter cells arise from a progenitor that is a cytohet.
haploinsufficient (Sec. 2.3.3) → ...
genotype → The cloning and molecular characterization of entire genomes.
heterozygous gene pair → A gene pair having different alleles in the two chromosome sets of the diploid individual—for example, A/a or A1/A2.
chloroplast DNA (cpDNA) → The small genomic component found in the chloroplasts of plants, concerned with photosynthesis and other functions taking place within that organelle.