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Genetics: Chapter I Flashcards | StudBud
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Genetics: Chapter I
Genetics: Chapter I
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1
Which of the following is the function of DNA?
Involved in the expression of stored genetic information.
Used structurally to hold the nucleus together.
Required when cells are using their ribosomes to translate a protein.
Responsible for the storage of and replication of genetic information.
2
Which DNA template below encodes the DNA sequence 5'-GACCTC-3'?
3'-CTGGAG-5'
3'-CUGGAC-5'
3'-GACCTC-5'
5'-CTGGAG-3'
3
The chromosomal theory of inheritance_____.
Was proposed by Gregor Mendel.
Describes how chromosomes can be altered by mutation.
Is that genes for phenotypic traits are carried on chromosomes.
Does not apply to haploid organisms.
4
Which of the following contains all the others?
Double Helix
DNA strand
Hydrogen bond
nucleotide
5
Which statement best describes the “central dogma” of genetics?
DNA is transcribed only to m R N A.
DNA is the only nucleic acid that can serve as genetic material.
RNA is frequently reverse transcribed to D N A.
The sequential transfer of information, residue by residue, in biomolecules
6
The following scientist(s) was instrumental to prove that DNA is the carrier of Genetic information in viruses:
Mendel & Boveri
Avery, MacLeod, and McCarty
Watson & Crick
Hershey & Chase
7
Which is least important for a species to possess in order for it to serve as a model organism?
Short reproductive cycle.
Availability of mutant strains.
Close evolutionary relationship to humans.
Easy growth and maintenance.
8
What are the basic subunits of DNA and RNA and how many subunits are there?
Nucleotides and four
Nucleotides and two
Proteins and four
Amino Acids and six
9
Which is true about Codons?
Complementary to DNA and are a two-nucleotide code for an amino acid.
They are placed at random in the RNA.
They are a circular series of nucleotide triplets.
Complementary to DNA and specify amino acids at the ribosome.
10
A protein shape and chemical behavior are determined by___.
The cholesterol makeup of the lipid membrane.
The type of cell in which it resides.
The cell's age
Its linear sequence of amino acids.
11
What is this information flow called?
Preservation of genetic information
Central Dogma of Genetics
Complementary Paring
Law of Order
12
We will pass our first exam.
False
True
13
Serves as the function to express the genetic material by being translated to protein.
RNA
DNA
Carbohydrate
Lipid
14
Where do we get CRISPR-Cas9 from?
Golgi
Fungi
Bacteria
Archaea
15
C R I S P R-Cas has the potential to_____.
Eradicate diseases caused by bacteria.
Refold proteins that cause disease when misfolded.
Edit mutations in the human genome to cure genetic diseases.
Revolutionize how we sequence genomes.
16
Due to advances in biotechnology, all but which of the following has become commonplace?
Sequential transfer of information, residue by residue, in biomolecules.
Genetic alteration of bacterial cells.
Cloning of human embryos.
Screening individuals for the presence of specific alleles.
17
The study of the set of proteins present in a cell is referred to as____.
Genomics
Proteomics
Gene therapy
Bioinformatics
18
What is a homunculus?
an undeveloped egg or sperm
Fertilized egg contains a complete miniature adult.
a preserved embryo
Homosapien
19
Which DNA coding strand below would be associated with the mRNA 3'-GCAUGC-5'?
3'-GCATGC-5'
5'-GCATGC-3'
3'-CGTACG-5'
5'-CGTACG-3'
20
In the genetic code, a single codon may specify as many as ____ different amino acids.
Three
six
One
Zero
21
Gregor Mendel’s contribution to genetics is_____.
The description of natural selection and evolution.
The discovery of chromosomes.
Discovery: traits are passed from parent to offspring in predictable ways.
That D N A carries the genetic information.
22
The following scientist(s) prove that DNA is the carrier of genetic information in bacteria:
Hershey & Chase
Boveri & Mendel
Avery, MacLeod, and McCarty
Watson & Crick
23
Which of the following evolutionary processes generally increases genetic diversity in a population?
Genetic Drift
Mutation
Migration
Natural Selection
24
The theory of epigenesis states that _______.
Adult structures in the organism develop from substances present in the egg
living organisms can arise from non-living matter.
Animal and plant species have remained unchanged since the dawn of time.
Sex cells contain a complete, miniature adult.
25
If translation begins with the first start codon in the mRNA below, the second codon would be which of the following?
5'-GGA-3'
5'-UGC-3'
5'-CAC-3'
5'-CCU-3'
26
What are the DNA bases and their pairs?
Thymine/Uracil; Guanine/Adenine
Adenine/Uracil; Guanine/Cytosine
Adenine/Thymine; Cytosine/Guanine
Adenine/Cytosine; Guanine/Uracil
27
The theory that put forth the idea that living organisms could arise by incubating nonliving components is....?
Cell Theory
Epigenesis
Spontaneous Generation
Preformation
28
What is another term for a Biological Catalyst?
Ribosome
Codon
Protein
Enzyme
29
Which is TRUE about Alleles?
An allele is a variant form of a gene.
There are four complementary bases.
all above
They are the basic units of life.
30
Consists of a linear series of three adjacent nucleotides present in mRNA molecules.
Law of Segregation
Genetic Code
Watson-Crick Base Pairing
Chromosomal Theory of Inheritance
31
The characteristic number of chromosomes is called___. It's usually symbolized as__.
Diploid; 2n
haploid; n
Haploid; 2n
Diploid; 4n
32
Genetics is the study of....?
Inheritance and variation.
Natural Selection
DNA sequence
Molecules and Atoms
33
In the 1970s, this discovery revolutionized DNA technology:
Restriction enzymes
PCR
Animal cloning
Genomes sequencing
