5 Written questions
5 Matching questions
- model organism
- deoxyribonucleic acid:
- molecular marker
- a A chain of linked nucleotides (having deoxyribose as their sugars). Two such chains in double helical form are the fundamental substance of which genes are composed.
- b (1) Four homologous chromatids in a bundle in the first meiotic prophase and metaphase. (2) The four haploid product cells from a single meiosis.
- c A site of DNA heterozygosity, not necessarily associated with phenotypic variation, used as a tag for a particular chromosomal locus.
- d ...
- e The phenotype shown by a heterozygote.
5 Multiple choice questions
- One of a pair of sex chromosomes, distinguished from the X chromosome.
- A mutation that confers a mutant phenotype but still retains a low but detectable level of wild-type function.
- One of the (usually four) cells formed by the two meiotic divisions.
- The two copies of a particular type of gene present in a diploid cell (one in each chromosome set).
- The sex with homologous sex chromosomes (e.g., XX).
5 True/False questions
homology → A cell having one chromosome set or an organism composed of such cells.
Northern blotting → The transfer of electrophoretically separated RNA molecules from a gel onto an absorbent sheet, which is then immersed in a labeled probe that will bind to the RNA of interest.
heterogametic sex → The sex with homologous sex chromosomes (e.g., XX).
monohybrid → A single-locus heterozygote of the type A/a.
homozygote → An individual organism that is homozygous.