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D Question 25 What does cell surface glycoprotein EP-cadherin interact with: Maternal factors O A transcription...
QUESTION 1 Hox genes are genes that code for transcription factors. What do transcription factors do?...
QUESTION 1 Hox genes are genes that code for transcription factors. What do transcription factors do? A. Bind to DNA to make it available for transcription B. Make up specific body parts C. Activate ribosomes QUESTION 2 Genes that need to be turned on at the same time (for example, the genes that encode the proteins that build toes) will all respond to the same transcription factor. A. True B. False QUESTION 3 Hox genes are sometimes called "master switches"....
QUESTION 5 In what way does DNA methylation typically regulate transcription? A. Represses transcription. B. Activates...
QUESTION 5 In what way does DNA methylation typically regulate transcription? A. Represses transcription. B. Activates transcription. O C. It doesn't regulate transcription at all. D. Both A and B.
6.) Mitogens are (b) transcription factors important for cyclin production (c) kinases that cause cells to...
6.) Mitogens are (b) transcription factors important for cyclin production (c) kinases that cause cells to grow in size (a) extracellular signals that stimulate cell division. d) produced by mitotic cells to keep nearby neighboring cells from dividing 7.) Which of the following cyclins is most active during mitosis? (a) cyclin A (b) cyclin B (c) cyclin C (d) cyclin D 8) Which molecule inactivate itotic cyclin-CDK complexes using phosphorylation? (a) Cdc25 (b) Cdc6 (c) Weel (d) Helicase 9.) What...
Receptor-mediated endocytosis depends on functional cell surface receptor proteins True O False Question 29 1.5 pts...
Receptor-mediated endocytosis depends on functional cell surface receptor proteins True O False Question 29 1.5 pts A certain cell needs to move a molecule of sucrose out of the cell. The concentration of sucrose in the extracellular space is greater than that in the cell's cytoplasm. What type of transport mechanism would the cell use? O passive transport exocytosis active transport osmosis In the lipid bilayer the phospholipid tails are hydrophobic hydrophilic Question 31 1.5 p A human white blood...
QUESTION 25 Movement of a cell toward nutrients and beneficial molecules o negative chemotaxis. O a...
QUESTION 25 Movement of a cell toward nutrients and beneficial molecules o negative chemotaxis. O a tumble. positive phototaxis. positive chemotaxis. negative phototaxis. QUESTION 26 The solute concentration in a bacterium is about 1.5%. If this bacterium is placed in a solution containing 0.75% solute, what is expected to occur? The bacterium is burst There will be no change The bacterium will plasmolyse The bacterium will swell QUESTION 27 Which of the following is odd? nitrogen copper carbon oxygen o...
Help with anatomy! Thanks D Question 6 What is the effector cell of humoral immunity? B...
Help with anatomy!
Thanks
D Question 6 What is the effector cell of humoral immunity? B lymphocyte Plasma cell O B memory cells O Helper T cell Question 7 Which leucocyte is most central to the adaptive immune response? B lymphocyte O T helper cell O T cytotoxic cell O T regulatory cell Question 8 A vaccine is an example of O naturally acquired active immunity O artificially acquired active immunity O naturally acquired passive immunity O artificially acquired passive...
QUESTION 1 A gene that encodes a protein that stimulates progression of the cell cycle is...
QUESTION 1 A gene that encodes a protein that stimulates progression of the cell cycle is known as a proto-oncogene. True False QUESTION 2 Cytokinesis occurs after which stage or phase of the cell cycle? a. G2 b. S c. G0 d. G1 e. M phase QUESTION 3 During cell-cycle checkpoints, protein kinases known as CDKs phosphorylate target proteins only when they associate with a cyclin. True False QUESTION 4 During mitosis, many of the spindle fibers attach to chromosomes...
Question 10. If the Earth's atmosphere is considered to extend from the surface to 25 km,...
Question 10. If the Earth's atmosphere is considered to extend from the surface to 25 km, the earth's radius is 6371 km, and the atmosphere is partitioned into cells spaced 0.25 km apart, how many floating point calculations will be required to run one iteration of a global weather simulation, assuming that each cell requires 300 floating point operations? If it requires 50 cycles (iterations) of simulation to calculate the weather over the next 24 hours and a forecast is...
please answer all 4 questions Question 11 3 pts A B-cell may be activated by: O...
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Sorry for bad grammar, English is not my native language. For question 11 what is a...
Sorry for bad grammar, English is not my native language.
For question 11 what is a haploid yeast cell? If the cell lacks
the promoter in the first then will it always be true
that expression will not occur despite the UAS sequence?
What is a UAS sequence?
For question number 13 response b how/why when a promoter is
closer to a consensus sequence more transcription occurs?
11. Galactose dependent transcription is regulated by the Gal4 transcription factor which binds...
QUESTION 5 In what way does DNA methylation typically regulate transcription? A. Represses transcription. B. Activates transcription. O C. It doesn't regulate transcription at all. D. Both A and B.
6.) Mitogens are (b) transcription factors important for cyclin production (c) kinases that cause cells to grow in size (a) extracellular signals that stimulate cell division. d) produced by mitotic cells to keep nearby neighboring cells from dividing 7.) Which of the following cyclins is most active during mitosis? (a) cyclin A (b) cyclin B (c) cyclin C (d) cyclin D 8) Which molecule inactivate itotic cyclin-CDK complexes using phosphorylation? (a) Cdc25 (b) Cdc6 (c) Weel (d) Helicase 9.) What...
Receptor-mediated endocytosis depends on functional cell surface receptor proteins True O False Question 29 1.5 pts A certain cell needs to move a molecule of sucrose out of the cell. The concentration of sucrose in the extracellular space is greater than that in the cell's cytoplasm. What type of transport mechanism would the cell use? O passive transport exocytosis active transport osmosis In the lipid bilayer the phospholipid tails are hydrophobic hydrophilic Question 31 1.5 p A human white blood...
QUESTION 25 Movement of a cell toward nutrients and beneficial molecules o negative chemotaxis. O a tumble. positive phototaxis. positive chemotaxis. negative phototaxis. QUESTION 26 The solute concentration in a bacterium is about 1.5%. If this bacterium is placed in a solution containing 0.75% solute, what is expected to occur? The bacterium is burst There will be no change The bacterium will plasmolyse The bacterium will swell QUESTION 27 Which of the following is odd? nitrogen copper carbon oxygen o...
Help with anatomy!
Thanks
D Question 6 What is the effector cell of humoral immunity? B lymphocyte Plasma cell O B memory cells O Helper T cell Question 7 Which leucocyte is most central to the adaptive immune response? B lymphocyte O T helper cell O T cytotoxic cell O T regulatory cell Question 8 A vaccine is an example of O naturally acquired active immunity O artificially acquired active immunity O naturally acquired passive immunity O artificially acquired passive...
Question 10. If the Earth's atmosphere is considered to extend from the surface to 25 km, the earth's radius is 6371 km, and the atmosphere is partitioned into cells spaced 0.25 km apart, how many floating point calculations will be required to run one iteration of a global weather simulation, assuming that each cell requires 300 floating point operations? If it requires 50 cycles (iterations) of simulation to calculate the weather over the next 24 hours and a forecast is...
please answer all 4 questions
Question 11 3 pts A B-cell may be activated by: O A TEH cell O Another B-cell O A cytotoxic T-cell O A natural killer T-cell Question 12 3 pts What happens to centrocytes that have high-affinity (tightly-binding) antigen receptors after somatic hypermutation? They receive survival signals from TFH cells o They cannot process antigen or present it to TFH cells o They undergo phagocytosis by dendritic cells in the "light zone" o They die...
Sorry for bad grammar, English is not my native language.
For question 11 what is a haploid yeast cell? If the cell lacks
the promoter in the first then will it always be true
that expression will not occur despite the UAS sequence?
What is a UAS sequence?
For question number 13 response b how/why when a promoter is
closer to a consensus sequence more transcription occurs?
11. Galactose dependent transcription is regulated by the Gal4 transcription factor which binds...
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