BIO 340 Exam Questions And Reviewed Answers
Allele - answersone of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Mitosis - answerspart of eukaryotic cell division during which the cell nucleus divides
Meiosis - answersCe...
Molecular definition of a gene - answers✔✔A segment of DNA encoding a polypeptide (or
an RNA chain)
Chromosomes - answers✔✔threadlike structures made of DNA molecules that contain the
genes
DNA (Double Helix) - answers✔✔DNA polymer strands held together by H bonds
Messenger RNA (mRNA) - answers✔✔A type of RNA, synthesized from DNA and attached
to ribosomes in the cytoplasm; it specifies the primary structure of a protein.
Polypeptide - answers✔✔A polymer (chain) of many amino acids linked together by peptide
bonds.
general definition of a gene - answers✔✔The fundamental unit of heredity, which carries
information from one generation to the next
Alleles (variants) - answers✔✔different forms of the same gene that change their frequency
in populations
forward genetic analysis - answers✔✔discovering genes that cause phenotypic variation
Steps for forward genetic analysis - answers✔✔1.Identify a biological trait of interest.
2.Find mutants that affect this trait.
3.Look for evidence that the mutants are caused by variation at a single gene.
4.Identify the DNA sequence of the gene.
Who is Gregor Mendel? - answers✔✔- Austrian monk
- trained in mathematics and natural history at university of vienna
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