07/11/2024 12:05
BIO 340 Exam Questions And Reviewed Answers
Allele - answers✔✔one of two or more alternative forms of a gene that arise by mutation and
are found at the same place on a chromosome.
Mitosis - answers✔✔part of eukaryotic cell division during which the cell nucleus divides
Meiosis - answers✔✔Cell division that produces reproductive cells in sexually reproducing
organisms
What matches the use of allele dominance in genetics? - answers✔✔In an allele pair, the
effect of the dominant allele is visible in the organism
Where are the eukaryotic chromosomes located in the cell? - answers✔✔in the nucleus
The central dogma of molecular biology states: - answers✔✔DNA -> RNA -> Protein
Transcription is the process that - answers✔✔Converts DNA into RNA
How many different nucleotides constitute the DNA molecule? - answers✔✔4
What is a ribosome? - answers✔✔A protein/RNA complex that translates RNA into protein
Transmission genetics: - answers✔✔The branch of genetics concerned with the mechanisms
by which genes are transferred from parent to offspring.
, ©JUSTTRACY EXAM SOLUTIONS
07/11/2024 12:05
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