TLS Online TPP Program

#Question id: 13107


With the help of DNA fingerprinting which can be used to determine paternity. There are three babies (Baby A, Baby B and Baby C) in a maternity ward, and three sets of confused and worried parents. (Father and Mother #1 are a couple, as are Father and Mother #2, and Father and Mother #3.) 
You do each PCR reaction on chromosome 15 and load each one into a separate well of an agarose gel, and then run the gel.
 

 
Why is it that some people show two bands?

#Unit 13. Methods in Biology
  1. The more repeats you have, the longer your DNA fragment is, and longer DNA fragments migrate more slowly in gels.
  2. They are homozygotes for the allele that cannot be cut.
  3. They are homozygotes for the allele that can be cut.
  4. They are heterozygotes, and possess one allele that can be cut and one allele that cannot be cut.
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TLS Online TPP Program

#Question id: 11282

#Unit 10. Ecological Principles

Which of the following ecosystems would likely have the largest net primary productivity per hectare and why?

TLS Online TPP Program

#Question id: 11283

#Unit 10. Ecological Principles

Herbivore ingests plant material with 1000 k j energy form producer and assimilated only 200 k J energy in their blood stream; additionally herbivore invests 120 k j energy in their maintenance. What is production efficiency of that herbivore?

TLS Online TPP Program

#Question id: 11284

#Unit 10. Ecological Principles

Which of the following could qualify as a top-down control on a grassland community?

TLS Online TPP Program

#Question id: 11285

#Unit 10. Ecological Principles

Terrestrial herbivores are animals that eat only plants and their digestive systems contain microbes that aid in the digestion of cellulose, Carnivores eat primarily animal flesh or fluids. Which of the following is correct is correct statement?

TLS Online TPP Program

#Question id: 11286

#Unit 10. Ecological Principles

Consumption, assimilation, and production efficiencies are measures of ecological efficiency. Following some statements are correct?

(A) Consumption efficiencies for carnivores are typically higher than those of herbivores

(B) Assimilation efficiencies of herbivore are often less than consumption efficiencies

(C) Vertebrates tend to have lower production efficiencies than invertebrates

TLS Online TPP Program

#Question id: 11287

#Unit 10. Ecological Principles

What is value of evenness in community 3 and 4 respectively?