Mitosis
Mendel's Legacy
Genetic Crosses
Discovery of DNA
Protein Synthesis
100
In mitosis, anaphase follows ____________________.
What is Metaphase
100
Mendel produced true-breeding strains of pea plants through the process of ____________________.
What is self-pollination
100
A fractional probability of 1/2 is the same as a decimal probability of ____________________.
What is 0.5
100
The scientists credited with establishing the structure of DNA are a. Avery and Chargaff. c. Mendel and Griffith. b. Hershey and Chase. d. Watson and Crick.
What is d. Watson and Crick.
100
Describe the flow of information in Protein Synthesis
What is DNA to RNA by transcription, RNA to Protein through translation
200
In plant cells, cytokinesis occurs when a. the chromosomes make exact copies of themselves. b. spindle fibers are formed. c. a new cell wall forms. d. osmotic pressure is too low.
What is a. a new cell wall forms
200
The cellular process that results in the segregation of Mendel’s factors is ____________________.
What is Meiosis
200
An organism’s ____________________ refers to the set of alleles it has inherited.
What is genotype
200
Hershey and Chase concluded that ____________________ is the hereditary material in viruses.
What is DNA
200
What are the three main types of RNA?
What is mRNA, rRNA, and tRNA
300
As a result of mitosis, each of the two new cells produced from the original cell during cytokinesis a. receives a few chromosomes from the original cell. b. receives an exact copy of all the chromosomes present in the original cell. c. donates a chromosome to the original cell. d. receives exactly half the chromosomes from the original cell.
What is b. receives an exact copy of all the chromosomes present in the original cell.
300
Mendel prevented self-pollination of his plants by a. growing only one kind of plant. b. preventing crossing-over. c. removing the anthers of the plants. d. removing the stigmas of the plants.
What is c. removing the anthers of the plants
300
The appearance of an organism as a result of its genotype is its ____________________.
What is phenotype
300
The transfer of genetic material from one cell to another, which Frederick Griffith studied, is called a. transduction. c. recombination. b. transformation. d. genetic transfer.
What is b. transformation
300
A(n) ____________________ is a sequence of DNA at the beginning of a gene that signals RNA polymerase to begin transcription.
What is promoter
400
A spindle fiber is a specialized form of a. microtubule. c. cilium. b. flagellum. d. chromosome.
What is a. microtubule
400
In Mendel’s experiments, a trait that disappeared in the F1 generation but reappeared in the F2 generation was always a ____________________.
What is recessive trait
400
What fraction of the offspring resulting from a heterozygous ´ heterozygous dihybrid cross are heterozygous for both traits? a. 9/16 c. 3/16 b. 1/4 d. 1/16
What is b. 1/4
400
True/False Avery used rats and S and R bacterium to carry out his experiments.
What is False. Griffith used mice and S and R bacteria to carry out his experiments, Avery used the same bacteria and enzymes
400
During transcription, when RNA polymerase reaches a __________, it releases the DNA and the newly formed RNA
What is termination sequence
500
What would happen if cytokinesis took place before mitosis
What is Chromosomes would be divided haphazardly resulting in defective cells, or one cell would end up with two nuclei and the other with none.
500
Cystic fibrosis appears in children of parents who do not have the disease. how can you explain this?
What is The disorder must be recessive, the parents must be heterozygous (carriers), and the child must receive the recessive allele from both parents
500
If you crossed two tall pea plants and all of the F1 offspring were tall, what could you say about the genotypes of the parents?
What is They were both homozygous dominant, or one was homozygous dominant and one was heterozygous
500
Why did Hershey and Chase use radioactive sulfur to label protein, and phosphorous to label DNA?
What is They knew that protein contains sulfur but not phosphorous, and DNA contains phosphorous but not sulfur.
500
How does the structure of tRNA relate to its function in translation?
What is It has a series of three nitrogen bases on one end (the anti-codon) that match up with a specific codon in mRNA, and on the other end it has an attachment site for a single amino acid.
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