Upgrade to remove ads
Terms in this set (11)
What is one mechanism for increasing the encoding capacity or the DNA genome that exists in eukaryotes but not prokaryotes?
What limits eukaryotic mRNA to being monocistronic while prokaryotic mRNA can be polycistronic?
Write out the sequence for all the possible coding mRNAs given the following DNA template
5' ATACAATACAATACGCGCCTAGCTAGGTTCTTTCGGTA 3'
3' TATGTTATGTTATGCGCGGATCGATCCAAGAAAGCCAT 5'
5' AUG UUA UGU UAU GCG CGG AUC GAU CCA AGA AAG CCA U 3'
5' AUG UUA UGC GCG GAU CGA UCC AAG AAA GCC AU 3'
5' AUG CGC GGA UCG AUC CAA GAA AGC CAU 3'
5' AUG GCU UUC UUG GAU CGA UCC GCG CAU AAC AUA ACA UA 3'
What is about the life cycle of yeast that makes it a powerful model for studying genetics?
Can exist as both a haploid and a diploid organism
How can you study things like complementation in a haploid organism like e. coli?
Use extra chromosomal DNA like plasmids for the second copy
Explain which is more likely to be worse.
a. A point mutation or a frameshift at the 5' end of a mRNA.
b. A silent or a missense or a nonsense mutation at the 5' end of a mRNA. (1 point)
c. A nonsense mutation at the 5' end or the 3' end of a mRNA. (1 point)
Frameshift, changes most mRNA coding sequence
Nonsense mutation, premature termination of translation
5' would affect more of the mRNA coding sequence
Changes in the first position of the anticodon (the position that would bind to the first nucleotide of a codon) are likely to result in a ________type of mutation. (1 point)
missense or nonsense
With mutant 508, a specific mutation in gene B results in a loss of function phenotype. However, mutant 284 which has the same mutation observed in mutant 508 but also has a mutation in gene E, has a wild type phenotype. What mechanism explains how mutant 284 has a wild type phenotype?
What is a null mutant?
Complete loss of function
Given the result of the following experiment, is the mutation a cis or trans mutation? (1 point) Explain your answer. (1 point)
In bacteria A, a mutation at nucleotide 2765 has resulted in the inability to complete the biochemical pathway resulting in the inability for bacteria A to fluoresce green. When a plasmid containing the wild type nucleotide at 2765 is injected into the bacteria, bacteria A now fluoresces green.
Complementation or trans-complementation
What are two reasons viruses are good models for studying genetics?
Large number of progeny
High mutations rate (RNA viruses)
Short generation time
Natural and artificial drivers for selection Small genomes (limited number of genes)
This set is often in folders with...
You might also like...
biology midterm #3
Analyzing and Engineering Genes and Genomes
Other sets by this creator
Other Quizlet sets
English Vocab Unit 5
Chapter 16: Elbow and Forearm
Religion Ch 9 Quiz
Child Care Psych (Exam 2)