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Molecular Biology
How are proteins transported out of the enodoplasmic reticulum to the Golgi apparatus?
A. in vesicles
B. on ribosomes
C. through pores
D. through cisternae
A. in vesicles
B. on ribosomes
C. through pores
D. through cisternae
Molecular Biology
What happens to proteins within the endoplasmic reticulum?
A. They are synthesized.
B. They are broken down.
C. They are converted into lipids.
D. They are modified by enzymes.
A. They are synthesized.
B. They are broken down.
C. They are converted into lipids.
D. They are modified by enzymes.
Molecular Biology
With the help of an example explain how two allelic pairs affect the same characteristic.
Molecular Biology
What are the reasons of the different life spans in a given species?
Molecular Biology
what are the reasons for the absence of thymine in RNA and absence of uracil in DNA?
Molecular Biology
You have recently isolated and cultured a cancerous cell line from a brain tumor of a patient. You are interested in determining what may be different at the gene expression level between the cancerous cellular tissue and the normal tissue. Design an experiment to characterize the differential gene expression between the two cell types.
Molecular Biology
What issues would you consider before embarking on a project using a clonal cell line model? What types of functions would be appropriated or inappropriate to study in such a system?
Molecular Biology
A circular plasmid of 10,000 base pairs (bp) is digested with two restriction enzymes,A and B, to produce a
3000 bp and a 2000 bp bands when visualised on an agarose gel. when digested with one enzyme at a
time,only one band is visible at 5000 bp. If the first site for enzyme A(A1) is present at the 100th base, the
order in which the remaining sites(A2,B1 and B2) are present is?
3000 bp and a 2000 bp bands when visualised on an agarose gel. when digested with one enzyme at a
time,only one band is visible at 5000 bp. If the first site for enzyme A(A1) is present at the 100th base, the
order in which the remaining sites(A2,B1 and B2) are present is?
Molecular Biology
Why do animals with millions of cells "need" a circulatory system while animals with few cells can do without one?
Molecular Biology
I give you four samples and tell you they are lysine (an amino acid), lactose (a disaccharide), insulin ( a protein hormone), and RNA. The sample are in test tubes marked 1,2,3 and 4, but you don't know which compound is in which tube. you need to identify the contests of each tube.
A. in your 1st test, your try to hydrolyze a portion of the contents of each tube. Hydrolysis occurs In all tubes except tube 3
B. in your next test, you find that tubes 1,2, and 3 are positive for nitrogen but only tube 2 gives a positive result for the presence of sulfur.
C. The Last test you perform shows that the compound in tube 1 contains a high percentage of phosphate.
based on these data, what was the content of each test tube
A. in your 1st test, your try to hydrolyze a portion of the contents of each tube. Hydrolysis occurs In all tubes except tube 3
B. in your next test, you find that tubes 1,2, and 3 are positive for nitrogen but only tube 2 gives a positive result for the presence of sulfur.
C. The Last test you perform shows that the compound in tube 1 contains a high percentage of phosphate.
based on these data, what was the content of each test tube
