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The ribosomes of prokaryotic cells a)exist free in the cytoplasm b)are found in the nucleus c)can be seen with the light microscope d)are located in the endoplasmic reticulum
If the dominant allele H is necessary for hearing, and the dominant allele D of another independent loci results in deafness no matter what other genes are present, what percentage of the offspring
Describe the detailed structure of proteins that enables this group of macromolecules to carry out diverse essential internal functions within cells and important interactive functions among cells.T
What element of TEE requires the most energy? BMR, Thermic effect of food, or physical activity? Explain thoroughly.
What is the one of the major functions of vacuoles in plant cells? a) energy production b) degradation of proteins c) synthesis of proteins d) maintaning internal hydrostatic pressure
Lactate ion is produced during intensive cell proliferation. In which process for energy production involve a generation of this molecule?
Do you think Koch's postulates could be applied to testing the microbial cause of other phenomena besides disease? Yes or No, and why?
How can mutations accumulate, given that cells have repair systems that fix changes or breaks in DNA strands? Please explain in detail.
Question: Explain a microarray study.What does it mean if a spot is red? Or Green? Or yellow? Question: Based on this data, which genes' expression could be used as diagnostic tools for patients?
How is colchicine useful for studying chromosomal mutations? a. Colchicine is an inhibitor of oxidative phosphorylation. Reduced mitochondrial function slows down mitosis and increases the number of
Which of the following are the purine nucleotides in DNA? 1.Adenine and thymine 2.Cytosine and guanine 3.Adenine and cytosine 4.Guanine and adenine 5.Thymine and uracil
The base-pairing error rate remains low during replication because 1.DNA repair mechanisms can fix the mispaired bases. 2.bases that are mispaired can excise themselves. 3.UV light radiation corrects
Which of the following statements about phenylketonuria (PKU) is false? 1. Buildup of phenylpyruvic acid affects the nervous system. 2. The amino acid tyrosine cannot be made. 3. Production of the hor
During the initiation step of transcription, which molecule binds the promoter region of a DNA molecule? 1.DNA polymerase 2.Reverse transcriptase 3.RNA polymerase 4.DNA primase 5.Topoisomerase
After removal of the RNA primers and replacement with DNA nucleotides, the single-stranded nick adjacent to Okazaki fragments is filled in through a reaction that involves which enzyme? 1.DNA primas
Polyphenic traits.. A) Are expressed differentially based on environmental conditions during a certain stage of life B) Form one phenotype C) The result of polyploidy D) Express a phenotype that may n
Question : What is the stream's esitmated NEP? Question : Based on these data, what was the stream's GPP?
Question 1: Diagram the cross described and calculate the distance between the two genes. 0.5 pts Question 2: What would have been the results if you had counted 100 female progeny of the cross? 0.5 p
Question 1: Why is it important that extracellular fluid is isotonic to cells? Question 2: Imagine that you have been given several strains of a microbe from various countries around the world and t
Explain how the substitution of the cis double bond by a trans double bond in the fatty acid of a membrane phospholipid might affect the membrane characteristics.
which of the following describes the default route of exocytosis? a. Golgi to ER to plasma membrane b. Plasma membrane to golgi to ER c. Plasma membrane to ER to golgi d. ER to golgi to plasma membran
Which of the following statements is true about the photosynthetic reaction? a. the reaction is an oxidation b. the reaction is endergonic c. change in S < 0 d. the reaction is endothermic
Which of the following processes is not entropically favored? a. water evaporates b. dry ice sublimes c. ice cream freees d. calcium chloride dissolves in water
Which of the following is not a key feature of lipids? a. hydrophobicity b. extensive hydrogen bonding c. lack of repeating structures d. hydrocarbon-like structures
Which of the following is not true about carbohydrates? a. they are the main component of cellulose and starch b. the presence of OH groups increases their hydrophobicity c. in polysaccharides, they c