What are the advantages of using a GasPak Anaerobic System compared to other methods for creating anaerobic environments?
1 Answer 
Questions and Answers For
Molecular biology
163 Questions
1 Answer Topoisomerase: – A. Separates the DNA strands at the origin – B. Keeps the single-stranded DNA regions from coming back together – C. Re-coils the DNA into a helix after replication is complete – D. Breaks DNA backbone to remove tension produced by the helicase – E. Breaks hydrogen bonds between DNA and the RNA primers
Topoisomerase: – A. Separates the DNA strands at the origin – B. Keeps the single-stranded DNA regions from coming back together – C. Re-coils the DNA into a helix after replication is complete – D. Breaks DNA backbone to remove tension produced by the helicase – E. Breaks hydrogen bonds between DNA and the RNA … Read more
1 Answer What kind of cells need cell replication of their telomeres?
What kind of cells need cell replication of their telomeres?
1 Answer What end overhangs?
What end overhangs?
1 Answer If the problem of the telomeres were not solved, what would happen?
If the problem of the telomeres were not solved, what would happen?
1 Answer What percent of all human cancers have high levels of telomerase?
What percent of all human cancers have high levels of telomerase?
1 Answer A repeating DNA sequence at the end of chromosomes that prevents them from losing base pair sequences at their ends and from fusing together is— – A telomere – A telomerase – A replicon – A primer – A promoter
A repeating DNA sequence at the end of chromosomes that prevents them from losing base pair sequences at their ends and from fusing together is— – A telomere – A telomerase – A replicon – A primer – A promoter
1 Answer All are part of a nucleotide except— – Pentose sugar – Nitrogenous base – Phosphate group – Fatty acid tail – All of the above are parts of a nucleotide
All are part of a nucleotide except— – Pentose sugar – Nitrogenous base – Phosphate group – Fatty acid tail – All of the above are parts of a nucleotide
1 Answer A DNA strand has the sequence 5′ ATCGTTATGCAA 3′. What would be the sequence of the complementary strand?
A DNA strand has the sequence 5′ ATCGTTATGCAA 3′. What would be the sequence of the complementary strand?
1 Answer The enzyme that stitches Okazaki fragments together on the lagging strand is— – DNA polymerase II – DNA polymerase III – Topoisomerase – DNA ligase – DNA helicase
The enzyme that stitches Okazaki fragments together on the lagging strand is— – DNA polymerase II – DNA polymerase III – Topoisomerase – DNA ligase – DNA helicase
1 Answer Top Questions
-
Give comparison between the following: (a) C3 and C4 pathways (b) Cyclic and non-cyclic photophosphorylation (c) Anatomy of leaf in C3 and C4 plants
C₃ and C₄ pathways C₃ plants fix CO₂ directly via...
Sourav Pan
-
Figure 11.10 shows the effect of light on the rate of photosynthesis. Based on the graph, answer the following questions: (a) At which point/s (A, B or C) in the curve light is a limiting factor? (b) What could be the limiting factor/s in region A? (c) What do C and D represent on the curve?
Light is the limiting factor at points A and B...
Sourav Pan
-
Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green ? Why?
Leaves on the shady side or from shade-grown plants are...
Sourav Pan
-
Why is the colour of a leaf kept in the dark frequently becomes yellow , or pale green? Which pigment do you think is more stable?
In darkness chlorophyll synthesis ceases while degradation continues, leading to...
Sourav Pan
-
Suppose there were plants that had a high concentration of Chlorophyll b, but lacked chlorophyll a, would it carry out photosynthesis? Then why do plants have chlorophyll b and other accessory pigments?
A plant lacking chlorophyll a cannot carry out photosynthesis because...
Sourav Pan
-
RuBisCO is an enzyme that acts both as a carboxylase and oxygenase. Why do you think RuBisCO carries out more carboxylation in C4 plants?
In C₄ plants, bundle sheath cells maintain very high CO₂...
Sourav Pan
-
Even though a very few cells in a C4 plant carry out the biosynthetic – Calvin pathway, yet they are highly productive. Can you discuss why?
C₄ plants concentrate CO₂ in bundle sheath cells around Rubisco,...
Sourav Pan
- All Questions