5 Written Questions
5 Matching Questions
- S phase
- a 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.
- b A structure of proteins attached to the centromere that links each sister chromatid to the mitotic spindle.
- c A process of nuclear division in eukaryotic cells conventionally divided into five stages: prophase, prometaphase, metaphase, anaphase, and telophase. conserves chromosome number by allocating replicated chromosomes equally to each of the daughter nuclei.
- d The synthesis phase of the cell cycle; the portion of interphase during which DNA is replicated.
- e A chromosome that is not directly involved in determining sex; not a sex chromosome.
5 Multiple Choice Questions
- specific location of a gene on a chromosome
- 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.
- The spread of cancer cells to locations distant from their original site.
- A cell containing two sets of chromosomes (2n), one set inherited from each parent.
- The X-shaped, microscopically visible region where crossing over has occurred earlier in prophase I between homologous nonsister chromatids. they become visible after synapsis ends, with the two homologs remaining associated due to sister chromatid cohesion.
5 True/False Questions
somatic cells → A haploid reproductive cell, such as an egg or sperm. unite during sexual reproduction to produce a diploid zygote.
G1 phase → The second gap, or growth phase, of the cell cycle, consisting of the portion of interphase after DNA synthesis occurs.
synapsis → The pairing and physical connection of duplicated homologous chromosomes during prophase I of meiosis.
chromatin → The X-shaped, microscopically visible region where crossing over has occurred earlier in prophase I between homologous nonsister chromatids. they become visible after synapsis ends, with the two homologs remaining associated due to sister chromatid cohesion.
karyotype → The diploid cell produced by the union of haploid gametes during fertilization; a fertilized egg