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Chapter 6

PBSC DNA & GENE EXPRESSION - Part 1 BSC1005 259323 CONCEPTS IN BIOLOGY

QuestionAnswer
What type of RNA carries the genetic code? messenger (mRNA)
The sugar found in a nucleotide of RNA is _____. Ribose
The two bases found in DNA which are classified as PURINES are _____ and _____. Adenine & Guanine
The 3 parts of a nucleotide are a phosphate, sugar and a _____. base
The process which results in a copy of the DNA molecule is known as _____. Replication
What is the name of the enzyme which pieces the short strands of DNA on the lagging side of the replication fork? Ligase
Where are codons found? messenger (mRNA)
During replication of DNA, the new strand known as the ______ strand is made as one continuous piece. Leading
What is the description used to indicate that in DNA one strand of nucleotides runs in the opposite chemical direction as the other strand? Anti-parallel
The sugar found in a nucleotide of DNA is _____. deoxyribose
What type of bond holds the sugar-phosphate backbone together in a DNA molecule? Covalent
During replication of DNA, the new strand known as the ______ strand is made as small pieces that are then pieced together. Lagging
The two bases found in DNA which are classified as PYRIMIDINES are _____ and _____. Cytosine & Thymine
What type of RNA is capable of carrying an amino acid while base pairing with a codon? transfer (tRNA)
What is the direction in which DNA Polymerase is able to build new DNA? 5' to 3'
What are the DNA bases that would match this strand of DNA: T-A-G-C-G-T-A A-T-C-G-C-A-T
_____ are the building blocks of DNA and RNA. Nucleotides
_____ is the description used for the replication of DNA in which the resulting new molecule is half old and half new. Semi-conservative
What type of RNA ultimately forms the site of protein synthesis? ribosomal (rRNA)
The process which results in a strand of RNA made to match the DNA template is known as _____. Transcription
What is the name of the process which decodes the message in RNA and turns it into protein? Translation
What are the RNA bases that would pair with this strand of DNA? T-A-C-C-G-A A-U-G-G-C-U
What type of bond holds the bases together in the middle of the DNA molecule? Hydrogen bond
What is the name of the enzyme which makes new DNA strands during replication? DNA Polymerase
True or False? There are no Thymines found in RNA. True