TLS Online TPP Program

#Question id: 21130


Erythritol is__

#Unit 12. Applied Biology
  1. Noncarcinogenic
  2. Sucrose sugar 
  3. Highly caloric
  4. Bitter in taste
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TLS Online TPP Program

#Question id: 3417

#Unit 11. Evolution and Behavior

In balancing selection, two or more alleles are kept in balance, and therefore are maintained in a population over the course of many generations. Which of the following example can support balancing natural selection?

A- Sickle cell allele kept in balance because heterozygotes have greater chance of survival if infected by the malarial parasite, compared with normal homozygotes

B. One morph has selective advantage over another morph

C. One homozygote has greater chance of survival than other genotype results in purity of population

D. many species of invertebrates exist as different colored forms, identical in all respects except color. Visually searching predators often develop a search image for one color form, usually the commoner

TLS Online TPP Program

#Question id: 2629

#Unit 2. Cellular Organization

Case of constitutive mutants,

TLS Online TPP Program

#Question id: 17675

#Unit 8. Inheritance Biology

In humans, albinism (unpigmented skin, hair, and eyes) is due to an enzymatic deficiency, and it is an autosomal recessive trait. Suppose that in a small country of one million people (“Generation 1”), there are 500 aa albinos and 9000 Aa heterozygous carries. If the Generation 1 follow the Hardy-Weinberg equilibrium?
a) then the number of homozygous aa albino individuals would be equal to P2
b) there were 500 albino individuals in generation one.
c) then the number of homozygous aa albino individuals would be equal to q2
d) there were 25 albino individuals in generation one.
Which of the following is the correct prediction about the hardy-weingburg equilibrium?

TLS Online TPP Program

#Question id: 24202

#Unit 4. Cell Communication and Cell Signaling

Homophilic Binding appears:

TLS Online TPP Program

#Question id: 10748

#Unit 10. Ecological Principles

Learning how much to study to earn an “a” in biology is an example of _____________.