Practice Tests Flashcards
What feature of canon and that makes life possible
Carbon has a max of 4 covalent bonds
Water held behind a dam would best reflect
Potential energy
A chemical reaction that has a positive G is correctly described as
Endergonic
Which of the following is not a product of light reactions of photosynthesis
ATP
During non cyclic electron flow of the light reaction, which molecule is the final accepter?
NADPH+
A cross between homozygous purple flowered and homozygous white flowered pea plants results in offspring with purple flowers. This demonstrates
Dominance
What was the most significant conclusion that Gregor Mendel drew from his experiments with pea plants
Traits are inherited in discrete units, and are not the results of blending
What is genetic cross between an individual showing a dominant phenotype bite of unknown genotype and a homozygous recessive individual called
Testcross
When crossing a Homo’s I guess recessive with a heterozygote, what is the chance of getting an offspring with the Homo was I guess recessive phenotype
50%
What is the mechanism for the production of genetic recombinants
Crossing over an independent assortment
A man who carries an X linked allele will pass it on to
All of his daughters
What kind of chemical bond that is form found between paied bases and the DNA double helix
Hydrogen
What is the function of DNA polymerase
To add nucleotides to the end of a growing DNA strand
Cytosine makes up 38% of the nucleotides in a sample of DNA from an organism. Approximately, what percentage of the nucleotides in this sample will be thymine
12
In his transformation experiments, what did Griffith Observer
Mixing a heat killed path of genetic strain of bacteria with a living non-pathogenic strain can convert some of the living cells into the pathogenic form
An Okazaki Fragment has which of the following arrangements
5’ RNA nucleotides, DNA nucleotides 3’
Which of the following help the whole the DNA strands apart while they are being replicated
Single-stranded binding proteins
What kind of molecule or substance is the primer that is used to initiate the synthesis of a new DNA strand
RNA
After DNA is completed
Each new DNA double helix consists of one or DNA strand and one new DNA strand
Once transcribed, Eukaryotic mRNA typically undergoes substantial alteration that includes
Excision of introns
The process that produces mRNA from DNA is called
Transcription
Where transcription begins
The promoter
Alternative Slicing
Enables a single gene to go to her more polypeptides that are different in their amino acid sequence
Which of the following molecules exhibit self splicing
rRNA and tRNA
