Cells, etc
Biochemistry
Transcription & Translation
Cell Replication
Genetics
100
If you are an alcoholic, what organelle will you want extra of?
smooth ER
100
What is the name of this monomer?
phospholipid
100
What signals transcription to begin?
the promoter sequence
100
What are the 2 goals of mitosis?
1. produce 2 genetically identical daughter cells
2. produce those daughter cells when needed
100
Different versions of a gene found among individuals.
What is an allele?
200
In an experiment, what is the group called that is used to reduce the influence of confounding variables?
the control group
200
A polypeptide chain has a short polar region and a short non-polar region. When put in water, how will this polypeptide fold?
the polar region will be exposed on the surface and the non-polar region will be inside
200
What mutation causes more than one amino acid or entire proteins to be affected?
frameshift mutations
200
What stage of either mitosis or meiosis is represented by this image?
Meiosis II
200
The allele composition of an organism
What is the genotype?
300
What type of membrane transport requires energy in order to move molecules against a concentration or to create/maintain a concentration gradient?
active transport
300
Why are weak chemical bonds important?
they help to reinforce the shapes of large molecules and help them interact with each other
300
What is the correct order in the process of creating a protein?
DNA --> RNA --> protein
300
Nondisjunction occurring during ______ is worse because all resulting haploid daughter cells have an abnormal ploidy.
Meiosis I
300
Both parents are heterozygous for albinism (heterozygous). Albinism is a single-gene Mendelian trait where the albino allele is recessive. What is the probability that her child will be either albino or will not be a carrier for albinism?
a 1/2 chance
400
Where are proteins synthesized within the cell?
the rough ER
400
Explain hydrogen bonds
they form when a hydrogen atom covalently bonded to another atom with higher electronegativity is attracted to the partial charge of an atom in a different molecule
400
What is meant by "the genetic code is redundant"?
multiple codons produce the same amino acid, but each codon only codes for ONE amino acid
400
Random fertilization, independent assortment, and crossing over contribute to what?
Genetic variation
400
A diploid organism has a 2n = 80 ploidy. If another of the same organism is trisomy, how many chromosomes will they have?
81 chromosomes
500
Five bags made of a semi-permeable material were filled with various concentrations of sucrose and then placed in separate beakers containing an initial concentration of 0.6M sucrose solution.
Which line shows the bag that contained a hypertonic solution at 60 minutes?
bag B
500
in presence of O2, cells oxidize glucose to CO2 and H2O. The principal role of O2 in this process is to
accept electrons released by glucose oxidation, forming H2O
500
mutant bacterial enzyme leucyl-tRNA synthetase mistakenly puts isoleucine on leucyl-tRNA 10% of time instead of leucine
bacteria will put isoleucine in protein at some normally leucine positions
500
which arrow shows the activation energy required for the enzyme catalyzed reaction?
b.
500
A mom and dad are both known carriers of a disease but do not present it themselves. They want to have 4 children, but do not want any of them to have the disease OR be carriers of it. What is the probability that they will have 4 non-diseased, non-carrier children?
They have a 1/256 chance.