BIO 1610 SLCC 2 COMPREHENSIVE STUDY GUIDE 2026 FULL QUESTIONS AND SOLUTIONS GRADED A+

BIO 1201 GREGG EXAM 3 2026
INTRODUCTORY BIOLOGY ASSESSMENT
QUESTIONS SOLUTIONS GRADED A+

◉ how many chromosomes do humans have in the nucleus of their
somatic cells?
Answer: 46 chromosomes (23 pairs)


◉ the two chromosomes in each pair are called...
Answer: homologous chromosomes/homologs


◉ each pair of homologous chromosomes includes...
Answer: one chromosome from each parent


◉ what does meiosis result in
Answer: 4 haploid daughter cells


◉ what does meiosis 1 do
Answer: separates homologous chromosomes


◉ when does crossing over and synapsis occur

,Answer: prophase 1


◉ what does meiosis 2 do
Answer: separates sister chromatids


◉ mitosis vs meiosis
Answer: Mitosis: one division forming 2 identical cells (clones);
Meiosis: two divisions forming 4 genetically different cells


◉ meiosis 2 is similar to mitosis because...
Answer: sister chromatids separate


◉ how do different alleles occur
Answer: through mutation


◉ what 3 things contribute to genetic variation
Answer: crossing over, independent assortment, random
fertilization


◉ when does independent assortment occur?
Answer: metaphase I of meiosis

, ◉ random fertilization
Answer: any sperm can fertilize any egg


◉ the mating of 2 true-breeding varieties
Answer: hybridization


◉ p generation
Answer: true-breeding parents


◉ f1 generation
Answer: hybrid offspring of the P generation


◉ f2 generation
Answer: offspring of the F1 generation


◉ alternative versions of a gene
Answer: alleles


◉ the specific spot where a gene resides on a chromosome
Answer: locus