Griffith- Heat-killed bacteria (R strain) and virulent bacteria (S strain) Avery- Transforming principle; extracts were mixed with living bacteria, incubated, and plated on petri dish; either polysaccharides, proteins, DNA, or RNA were responsible for the
Discussion 3: Deviations from Mendel
1. In rabbits, an allelic series helps to determine coat color: C (full color), cch (chinchilla; gray color), ch
(Himalayan; white with black extremities), and c (albino; all whit
Quiz: Homework 8
1 of 4
1. Which of the following chromosomal mutations cannot revert to the wild-type state?
E. Any of these
Chapter Nine: Chromosome Variation
*1. List the different types of chromosome mutations and define each one.
Deletion: loss of a portion of a chromosome
Duplication: addition of an extra copy
1. Alleles, genes, and loci are different names for the same thing.
2. The genotype is the physical appearance of a trait.
3. The principle of independent assortment can be demonstrated using a monohybr
1. (Problem 13) The termination of transcription before structural genes of an operon are transcribed is
A. catabolite repression.
B. eukaryotic RNA regulation.
C. inducible regulation.
E. Both A and D are correct.
Quiz: Homework 3
1 of 4
1. The probability of two or more independent events occurring together is calculated by multiplying their
Chapter Thirteen: Transcription
Draw an RNA nucleotide and a DNA nucleotide, highlighting the differences. How
is the structure of RNA similar to that of DNA? How is it different?
RNA and DNA are polymers of nucleo
Chapter Ten: DNA: The Chemical Nature of the Gene
What three general characteristics must the genetic material possess?
(1) The genetic material must contain complex information that encodes the
Chapter Seven: Linkage, Recombination, and Eukaryotic Gene
What does the term recombination mean? What are two causes of recombination?
Recombination means that meiosis generates gametes with different allel
Chapter Five: Extensions and Modifications of Basic Principles
How do incomplete dominance and codominance differ?
Incomplete dominance means the phenotype of the heterozygote is intermediate to the
phenotypes of th
Chapter Eight: Bacterial and Viral Genetic Systems
Explain how auxotrophic bacteria are isolated.
Unlike prototrophic bacteria (wild-type) that can grow on minimal media,
auxotrophic bacteria are mutant strains of ba
Chapter Twenty-Two: Developmental Genetics and Immunogenetics
What experiments suggested that genes are not lost or permanently altered in
The ability to clone plants and animals from differentiated ce
Chapter Fifteen: The Genetic Code and Translation
What is the one gene, one enzyme hypothesis? Why was this hypothesis an important
advance in our understanding of genetics?
The one gene, one enzyme hypothesis propo
Chapter Twenty-Five: Population Genetics
What is a Mendelian population? How is the gene pool of a Mendelian population
A Mendelian population is a group of sexually reproducing individuals mating
Chapter Fourteen: RNA Molecules and RNA Processing
What is the concept of colinearity? In what way is this concept fulfilled in bacterial and
Colinearity is the concept that the sequence of codons
Chapter Nineteen: Recombinant DNA Technology
List some of the effects and practical applications of molecular genetic analyses.
Molecular genetics has had profound effects on all fields of biology. Whole
Chapter Four: Sex Determination and Sex-Linked Characteristics
*1. What is the most defining difference between males and females?
Males produce relatively large gametes; females produce larger gametes.
How do monoec
Chapter Eighteen: Gene Mutations and DNA Repair
What is the difference between somatic mutations and germ-line mutations?
Germ-line mutations are changes in the DNA of germ (reproductive) cells and may
be passed to
Chapter Two: Chromosomes and Cellular Reproduction
Give some genetic differences between prokaryotic and eukaryotic cells.
No paired chromosomes (haploid)
Chapter Sixteen: Control of Gene Expression in Prokaryotes
Why is gene regulation important for bacterial cells?
Gene regulation allows for biochemical and internal flexibility while maintaining
energy efficiency by
Chapter Three: Basic Principles of Heredity
Why was Mendels approach to the study of heredity so successful?
Mendel was successful for several reasons. He chose to work with a plant, Pisum
sativum, that was easy to
Regulation of Gene Expression in
Learning objectives for
After todays discussion section, students
should be able to:
Explain the logic of a prokaryotic gene regulatory
system such as the one that
1. In a certain species of bacteria, the three tRNAs that decode the 6 leucine codons have
anticodon sequences 5-IAG-3, 5-CAG-3, and 5-UAA-3. What must be the 6 leucine
codons? Possible wobble interactions are shown below.
a. 5-GUC-3, 5-AUC-3, CUC-3, 5-UU
Dihybrid Crosses A ale of two genes
The Return of Mendel
Chapter 2, sec. 2.3
Mendels Monohybrid Crosses
Mendels Dihybrid Crosses
round yellow seeds
wrinkled green seeds
round yellow seeds
F1 X F1
F2: 315 round yellow
108 round gre
Name: _ Class: _ Date: _
exam 2, BIOL 203, Fall 15
Identify the choice that best completes the statement or answers the question.
(4 points) Look
at the picture below. Which statement BEST explains the phenotypes seen? (Black
Gene Transfer in Bacteria
Marc Adrian, 1985
Follow only the Lytic Cycle
Temperate Phages ( above):
Follow the Lytic or Lysogenic Cycles
Determination of cell fate selection
Applications Part II
Ch. 16 pp. 551 556
Autosomal Dominant, 4p16.3 (near the tip)
Progressive neural degeneration
Relatively late age of onset
Most cases develop in their 40s
Can range from as early as a
* male hymenoptera
Polyploidy in plants common
Flowering plants ~ 3
Chapter 3 sec. 3.4 3.5, Chapter 8 pp. 292 293
The Y chromosome determines sex
No Y Female
XXY and XXXY are abnormal males
XO and XXX are abnormal females
The Y chromosome carries the gene SRY which