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Ap Biology Biology

01/23/19

If one strand of DNA has a C attached to a sugar with a free 5’ phosphate group, the other strand will have a _ attached to a sugar with a free _ group.

C; 5’ phosphate.C; 3’ hydroxyl.G; 3’ hydroxyl.G; 3’ phosphate.G; 5’ phosphate.

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Ap Biology

01/20/19

In a fragment of DNA, the content of guanine is 30%. What is percentage of thymine in this DNA fragment?

70%20%30%40%There is not enough information provided to answer this question.

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Ap Biology

01/20/19

Which of the following statements about base pairing is correct?

A pairs with T using 3 hydrogen bondsT pairs with C using 2 hydrogen bondsC pairs with G using 2 hydrogen bondsA pairs with G using 3 hydrogen bondsG pairs with C using 3 hydrogen bonds

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Ap Biology

01/20/19

You are performing an experiment that requires radioactive labeling of DNA. Which isotopes of the elements below could not be used for this purpose?

PhosphorusSulfurCarbonHydrogenNitrogen

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Ap Biology

01/20/19

Which of the following statements is true about the central dogma of molecular biology?

Proteins provide instructions to produce functional products called DNA The process of translation is reversible Genetic information stored in DNA is transcribed into double stranded RNA, which is... more

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Ap Biology Biology

01/16/19

A series of six to nine consecutive histidine residues can bind to immobilized metals such as nickel (Ni).

The purification of a protein containing six histidines at its C-terminus using a nickel-based resin would be achieved by _____ chromatography. size exclusion. cation exchange. anion... more

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Ap Biology Biology

01/16/19

If Hershey and Chase had found 35S in both the pellet and the supernatant of the phage-infected bacterial culture, what would have been the most plausible conclusion?

The experiment would have been inconclusiveProtein must be the genetic material.DNA must contain sulfur.The bacteria were not infected with phageThe genetic information molecule definitely contains... more

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Ap Biology Biology

01/16/19

Each of the following could result in the misfolding of a protein except _____.

the addition of a chaperone protein. a change of solvent from water to benzene. an increase in temperature to 100°C. a rapid change to a solvent at pH 12. the addition of 6M HCl, a strong acid.

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Ap Biology Biology

01/16/19

Ionic interactions could occur between which of the following amino acids as part of a protein’s tertiary structure?

Two cysteines.Tryptophan and valine.Glutamic acid and arginine.Histidine and lysine.Serine and threonine.

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Ap Biology Biology

01/16/19

Aspartic acid and glutamatic acid can form hydrogen bonds with water because they _____.

have phosphate groups in their side chains.have nonpolar, hydrophobic side chains.have polar, uncharged sided chains.have electrically charged side chains.have sulfhydryl groups in their side chains.

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Ap Biology Biology

01/16/19

The coiling in an a-helix is stabilized by

hydrogen bonding of the N–H groups on one amino acid and the C=O groups on another.the hydrophobic nature of the R chains, which causes the chain to coil with the R groups inward.repulsion of the R... more

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Ap Biology Biology

01/09/19

Where would the hydrogen bond would form between water and acetone?

the carbon atom in acetone and one of the hydrogen atoms in water. one of the hydrogen atoms in acetone and the oxygen atom in water. the oxygen atom in acetone and one of the hydrogen atoms in... more

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Ap Biology Biology

01/09/19

Match each question below with the most appropriate category of Bloom’s Taxonomy that it employs.

1.What molecule is represented by the molecular formula H2O?2.Water is capable of participating in what type of bond/interaction(s)?3.Why does water have a higher specific heat than benzene... more

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Ap Biology Biology

01/09/19

Which pair of molecules is most likely to be miscible (i.e., each soluble in the other)?

Amino acid and methanol. Water and methanol. Methanol and octane. Amino acid and octane. Octane and water.

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Ap Biology Biology

01/09/19

Which statement explains why ice floats in liquid water?

Water molecules maintain the same bent shape in liquid and solid states. As water molecules go from the liquid to the solid state, their rate of motion decreases. Water molecules maintain the same... more

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Ap Biology

12/22/18

If we schedule two teachers for the same subject, a) Is it a conflict ? b) Will the tutors know that my son is taking tutoring from two different tutors for the same subject ?

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Ap Biology Science Biology

12/13/18

True or false. A receptor may act as a signal. Explain and justify your answer.

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Ap Biology Science Biology

12/13/18

Describe how protein kinases and protein linked receptors may interact in a signal transduction cascade?

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Ap Biology Science Biology

12/13/18

How might signal transduction differ in prokaryotes and eukaryotes?

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Ap Biology Science Biology

12/13/18

How are secondary messengers in a signaling pathway different from signals and receptors? What roles do they have in common with signals?

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Ap Biology

10/22/18

catalyzed reaction

You are analyzing a reaction catalyzed by an enzyme which functions at a pH of 9.0 and a temperature of 37C. You conduct the reaction at a pH of 3.0 and observe that the enzyme does not function.... more

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Ap Biology

10/22/18

Enzymes and catalysts

Which statement about enzymes is false?A)At low substrate concentration, the presence of an enzyme greatly increases the rate of a reaction, but once the enzyme becomes saturated, the reaction rate... more

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Ap Biology Science

09/01/18

What would cells with the monoploid number of chromosomes be found in ----------------------------------------------------- The stem or the anthers of a plant

AP Biology Study Guide

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Ap Biology Science

09/01/18

what would cells with the monoploid number of chromosomes be found in ----------------------------------------------------- The stem or the anthers of a plant

This is for an AP Biology study guide

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Ap Biology

03/07/18

What negative consequence can occur when non-native species are introduced into an ecosystem? (2 points)

a. Native species are forced to compete more vigorously.b. The introduced species prey on native species.c. The introduced species mate with native species and add genetic variety.d. The introduced... more

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If one strand of DNA has a C attached to a sugar with a free 5’ phosphate group, the other strand will have a _____ attached to a sugar with a free _____ group.

In a fragment of DNA, the content of guanine is 30%. What is percentage of thymine in this DNA fragment?

Which of the following statements about base pairing is correct?

You are performing an experiment that requires radioactive labeling of DNA. Which isotopes of the elements below could not be used for this purpose?

Which of the following statements is true about the central dogma of molecular biology?

A series of six to nine consecutive histidine residues can bind to immobilized metals such as nickel (Ni).

If Hershey and Chase had found 35S in both the pellet and the supernatant of the phage-infected bacterial culture, what would have been the most plausible conclusion?

Each of the following could result in the misfolding of a protein except _____.

Ionic interactions could occur between which of the following amino acids as part of a protein’s tertiary structure?

Aspartic acid and glutamatic acid can form hydrogen bonds with water because they _____.

The coiling in an a-helix is stabilized by

Where would the hydrogen bond would form between water and acetone?

Match each question below with the most appropriate category of Bloom’s Taxonomy that it employs.

Which pair of molecules is most likely to be miscible (i.e., each soluble in the other)?

Which statement explains why ice floats in liquid water?

If we schedule two teachers for the same subject, a) Is it a conflict ? b) Will the tutors know that my son is taking tutoring from two different tutors for the same subject ?

True or false. A receptor may act as a signal. Explain and justify your answer.

Describe how protein kinases and protein linked receptors may interact in a signal transduction cascade?

How might signal transduction differ in prokaryotes and eukaryotes?

How are secondary messengers in a signaling pathway different from signals and receptors? What roles do they have in common with signals?

catalyzed reaction

Enzymes and catalysts

What would cells with the monoploid number of chromosomes be found in ----------------------------------------------------- The stem or the anthers of a plant

what would cells with the monoploid number of chromosomes be found in ----------------------------------------------------- The stem or the anthers of a plant

What negative consequence can occur when non-native species are introduced into an ecosystem? (2 points)

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If one strand of DNA has a C attached to a sugar with a free 5’ phosphate group, the other strand will have a _ attached to a sugar with a free _ group.