5 Written questions
5 Matching questions
- crossing over
- a The period in the cell cycle when the cell is not dividing. During this phase, cellular metabolic activity is high, chromosomes and organelles are duplicated, and cell size may increase. often accounts for about 90% of the cell cycle.
- b The spread of cancer cells to locations distant from their original site.
- c The reciprocal exchange of genetic material between nonsister chromatids during prophase I of meiosis.
- d A cell containing two sets of chromosomes (2n), one set inherited from each parent.
- e In organisms (plants and some algae) that have alternation of generations, the multicellular haploid form that produces haploid gametes by mitosis. The haploid gametes unite and develop into sporophytes.
5 Multiple choice questions
- The generation of offspring from a single parent that occurs without the fusion of gametes (by budding, division of a single cell, or division of the entire organism into two or more parts). In most cases, the offspring are genetically identical to the parent.
- The first gap, or growth phase, of the cell cycle, consisting of the portion of interphase before DNA synthesis begins.
- A cell containing only one set of chromosomes (n).
- A structure of proteins attached to the centromere that links each sister chromatid to the mitotic spindle.
- The division of the cytoplasm to form two separate daughter cells immediately after mitosis, meiosis I, or meiosis II.
5 True/False questions
karyotype → The diploid cell produced by the union of haploid gametes during fertilization; a fertilized egg
genome → The diploid cell produced by the union of haploid gametes during fertilization; a fertilized egg
homologous chromosomes → A pair of chromosomes of the same length, centromere position, and staining pattern that possess genes for the same characters at corresponding loci. One is inherited from the organism's father, the other from the mother.
sporophyte → In organisms (plants and some algae) that have alternation of generations, the multicellular haploid form that produces haploid gametes by mitosis. The haploid gametes unite and develop into sporophytes.
binary fission → A method of asexual reproduction by "division in half." In prokaryotes, it does not involve mitosis, but in single-celled eukaryotes that undergo this, mitosis is part of the process.