Bio 351 Exam 1| QUESTIONS WITH CORRECT ANSWERS| LATEST UPDATE GUARANTEED SUCCESS

Bio 351 Exam 1| QUESTIONS WITH CORRECT ANSWERS| LATEST UPDATE
GUARANTEED SUCCESS



Metaphase 1 (meiosis) Chromosomes line up at the equator.




Anaphase 1 (meiosis) homologous chromosomes separate the opposite poles




Prophase 2 (meiosis) chromosomes stay condensed




Metaphase 2 (meiosis) Chromosomes line up at the equator.




Anaphase 2 (meiosis) sister chromatids separate




Importance of Meiosis allows variation (evolution)

maintains chromosome number in diploid sexually reproducing organisms




Aneuploidy change in number of single chromosomes

Occurs through non-disjunction

ex. trisomy and monosomy




Non-disjunction inappropriate cell division

, Alterations in ploidy levels changes in complete set of chromosomes

ex. triploidy




Genotype genetic makeup of an organism




Phenotype physical characteristics of an organism




Gregor Mendel father of genetics, pea plants




Why peas work 1) several varying traits

2) traits with 2 distinct variants

3) can control matings

4) started with true/pure breeding

5) close correlation between genotype and phenotype




Pea experiment conclusions alternate versions of genes account for variation in inherited
characteristics




Allele alternate versions of the same gene