BIO 315 GENETICS EXAM 1 HENNIGAN
WITH 100% CORRECT ANSWERS
Genetics - Correct Answers -•the branch of biology concerned with the study of heredity
and variation
•The study of the of the origin, transmission, and expression of genetic information.
Theory of epigenesis - Correct Answers -Adult organisms develop over time from a
fertilized egg
Theory of preformation - Correct Answers -The fertilized egg contains a complete
miniature adult
The cell theory - Correct Answers -•All organisms are composed of basic structural units
called cells
•All cells came from a previously existing cell
The Origin of Species - Correct Answers -1859: Charles Darwin's book explained how
various species evolve over time and only those with advantages can survive and
reproduce
Descent with modification - Correct Answers -Existing species arose from other
ancestral species
Natural selection - Correct Answers -The mechanism for evolutionary change
CRISPR-Cas systems - Correct Answers -•CRISPR is an RNA molecule
•Recognizes and binds to its corresponding DNA sequence
•Cas is a nuclease
•An enzyme that cleaves DNA at a specific site in a specific way.
•Together a CRISPR-Cas system can be used to target specific DNA sequences (ie.
genes) and edit them.
Modern model organisms - Correct Answers -•Viruses: T phages and lambda phages
•Bacteria: Escherichia coli
•Yeast: Saccharomyces cerevisiae
Society is faced with a host of sensitive genetics-related issues like? - Correct Answers
-•Prenatal testing
, •Ownership of genes
•Access to/safety of gene therapy
History of Genetics - Correct Answers -1860s-Darwin's work
1860s-Mendel's work Published
1900s to 1940s-Chromosome theory of inheritance proposed. Transmission genetics
evolved.
1900s-Mendel's work rediscovered, correlated with chromosome behavior in meiosis.
1940s to 1950s-DNA shown to carry genetic information. Watson-Crick model of DNA.
1950s to 1960s-Era of molecular genetics. Gene expression, regulation understood.
1970s to 1980s-Recombinant DNA technology developed. DNA cloning begins.
1990s to present-Genomics begins. Human Genome Project initiated.
2000s-Application of genomics begins.
Chromosomal Theory of Inheritance - Correct Answers -•Inherited traits are controlled
by genes residing on chromosomes
•Inherited traits are controlled by genes residing on chromosomes transmitted through
gametes, maintaining genetic continuity form generation to generation
What is a chomosome? - Correct Answers -Chromosomes Can Contain Hundreds of
Genes; Chromosomes in diploid cells exist in pairs Called homologous chromosomes
(X)
Meiosis - Correct Answers -cell division that produces reproductive cells; Chromosomes
are copied and distributed-Resulting cells (gametes) receive only half the number of
chromosomes [haploid (n)]
Mitosis - Correct Answers -cell division that produces reproductive cells; Chromosomes
are copied and distributed-The two resulting daughter cells each receive a diploid set
(2n)
Alleles - Correct Answers -Mutations produce these of a gene-The source of genetic
variation
Genotype - Correct Answers -The set of alleles for a given trait
Phenotype - Correct Answers -Expression of the genotype-Produces an observable trait
DNA is - Correct Answers -•Antiparallel
•Double-stranded helix
•Made of nucleotides
Monomer is - Correct Answers -•Nucleotide consisting of a sugar (deoxyribose)
•Bonded to a phosphate
•Also bonded to the bases adenine, cytosine, guanine, and thymine
WITH 100% CORRECT ANSWERS
Genetics - Correct Answers -•the branch of biology concerned with the study of heredity
and variation
•The study of the of the origin, transmission, and expression of genetic information.
Theory of epigenesis - Correct Answers -Adult organisms develop over time from a
fertilized egg
Theory of preformation - Correct Answers -The fertilized egg contains a complete
miniature adult
The cell theory - Correct Answers -•All organisms are composed of basic structural units
called cells
•All cells came from a previously existing cell
The Origin of Species - Correct Answers -1859: Charles Darwin's book explained how
various species evolve over time and only those with advantages can survive and
reproduce
Descent with modification - Correct Answers -Existing species arose from other
ancestral species
Natural selection - Correct Answers -The mechanism for evolutionary change
CRISPR-Cas systems - Correct Answers -•CRISPR is an RNA molecule
•Recognizes and binds to its corresponding DNA sequence
•Cas is a nuclease
•An enzyme that cleaves DNA at a specific site in a specific way.
•Together a CRISPR-Cas system can be used to target specific DNA sequences (ie.
genes) and edit them.
Modern model organisms - Correct Answers -•Viruses: T phages and lambda phages
•Bacteria: Escherichia coli
•Yeast: Saccharomyces cerevisiae
Society is faced with a host of sensitive genetics-related issues like? - Correct Answers
-•Prenatal testing
, •Ownership of genes
•Access to/safety of gene therapy
History of Genetics - Correct Answers -1860s-Darwin's work
1860s-Mendel's work Published
1900s to 1940s-Chromosome theory of inheritance proposed. Transmission genetics
evolved.
1900s-Mendel's work rediscovered, correlated with chromosome behavior in meiosis.
1940s to 1950s-DNA shown to carry genetic information. Watson-Crick model of DNA.
1950s to 1960s-Era of molecular genetics. Gene expression, regulation understood.
1970s to 1980s-Recombinant DNA technology developed. DNA cloning begins.
1990s to present-Genomics begins. Human Genome Project initiated.
2000s-Application of genomics begins.
Chromosomal Theory of Inheritance - Correct Answers -•Inherited traits are controlled
by genes residing on chromosomes
•Inherited traits are controlled by genes residing on chromosomes transmitted through
gametes, maintaining genetic continuity form generation to generation
What is a chomosome? - Correct Answers -Chromosomes Can Contain Hundreds of
Genes; Chromosomes in diploid cells exist in pairs Called homologous chromosomes
(X)
Meiosis - Correct Answers -cell division that produces reproductive cells; Chromosomes
are copied and distributed-Resulting cells (gametes) receive only half the number of
chromosomes [haploid (n)]
Mitosis - Correct Answers -cell division that produces reproductive cells; Chromosomes
are copied and distributed-The two resulting daughter cells each receive a diploid set
(2n)
Alleles - Correct Answers -Mutations produce these of a gene-The source of genetic
variation
Genotype - Correct Answers -The set of alleles for a given trait
Phenotype - Correct Answers -Expression of the genotype-Produces an observable trait
DNA is - Correct Answers -•Antiparallel
•Double-stranded helix
•Made of nucleotides
Monomer is - Correct Answers -•Nucleotide consisting of a sugar (deoxyribose)
•Bonded to a phosphate
•Also bonded to the bases adenine, cytosine, guanine, and thymine
