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TLS Online TPP Program

#Question id: 374

The pH of a sample of blood is 7.4, while gastric juice is pH 1.4.  The blood sample has:

#SCPH01 Biochemistry

  1. 0.189 times the [H+] as the gastric juice.

  2. 5.29 times lower [H+] than the gastric juice.

  3. 6,000 times lower [H+] than the gastric juice.

  4. a million times lower [H+] than the gastric juice.

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TLS Online TPP Program

#Question id: 4745

#SCPH28 | Zoology

In some goats, the presence of horns is produced by an autosomal gene that is dominant in males and recessive in females. A horned female is crossed with a hornless male. The F1 offspring are intercrossed to produce the F2. What proportion of the F2 offspring will have horns?
TLS Online TPP Program

#Question id: 12932

#SCPH28 | Zoology

Why mRNA cannot be used directly in cloning?
TLS Online TPP Program

#Question id: 11142

#I Life Science/ Life Sciences Group – I-V

A researcher uses the chemical inhibitor cyanide to reduce ATP production in a neuron. What would be one effect of preventing ATP production?
TLS Online TPP Program

#Question id: 1125

#SCPH28 | Zoology

Examples of G protein–coupled receptors include

a. rhodopsin receptor.             b. β-adrenergic receptor.

c. insulin receptor.                   d. acetylcholine receptor.
TLS Online TPP Program

#Question id: 5216

#SCPH28 | Zoology

Alu elements account for about 10% of the human genome. What does this mean?