Study sets, textbooks, questions
Upgrade to remove ads
bio 1010 test #3
Terms in this set (20)
what is the function of DNA in cells?
storing genetic information
what is the function of RNA in cells?
Convey genetic information (that directs synthesis of specific proteins)
what are the monomers of nucleic acids?
how many sugar phosphate backbones does DNA typically have?
what are 4 differences between DNA and RNA?
1. DNA is in the nucleas, RNA is in the cytoplasm
2. DNA is self replicating, RNA is synthesized from DNA when needed.
What is a Gene?
A portion of a DNA molecule that codes for one polypeptide or protein.
Who is James Watson?
co-discoverer of the structure of DNA in 1953 with Francis Crick
co-discoverer of the structure of the DNA molecule in 1953 together with James D. Watson
British biophysicist and X-ray crystallographer who made critical contributions to the understanding of the fine molecular structures of DNA, RNA, viruses, coal, and graphite
the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins
How many chromosomes does the human body cell have?
46 in the somatic cells and 23 in the sex cells
what is a chromosome?
Threadlike structure within the nucleus containing the genetic information that is passed from one generation of cells to the next
where in a eukaryotic cell is DNA found?
where is the eukaryotic cell is RNA found?
difference between polypeptide and protein?
A polypeptide is called a protein only if it has FUNCTION.
in transcription, information on a________ molecule is copied by assembly of an_____ molecule
where does transcription occur?
what enzyme is involved in the process of transcription?
a specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid
what could cause a change in a DNA molecule?
DNA damage from environmental agents such as ultraviolet light (sunshine), nuclear radiation or certain chemicals
Mistakes that occur when a cell copies its DNA in preparation for cell division.
Recommended textbook explanations
Fundamentals of Biochemistry
Charlotte W. Pratt, Donald Voet, Judith G. Voet
Campbell Biology (AP Edition)
Cain, Campbell, Minorsky, Reece, Urry, Wasserman
Miller and Levine Biology
Joseph S. Levine, Kenneth R. Miller
Biocalculus: Calculus for the Life Sciences
Sets with similar terms
DNA Replication/Protein Synthesis Quiz R…
frameshift mutation- biology
BioExam CH.11/12/13 (#4)
Other sets by this creator