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TLS Online TPP Program

#Question id: 4585

The cow Bos primigenius (which is bred for meat and milk) has a smaller brain and larger eyes than closely related wild species of ungulates. These traits most likely arose by ________.

#SCPH06 I Botany

  1. natural selection, because these traits evolved in the population over time

  2. natural selection, because these traits were not consciously selected by humans

  3. artificial selection, because changes in these traits co-occurred with human selection for high milk output and high muscle content

  4. artificial selection, because these animals differ from their close relatives and common ancestor

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TLS Online TPP Program

#Question id: 4171

#SCPH05 I Biotechnology

Use the table below to determine which template strand DNA sequence (written in the 5ʹ → 3ʹm direction) specifies the tripeptide with the sequence gly-ala-leu.
TLS Online TPP Program

#Question id: 3711

#SCPH28 | Zoology

 How many replisomes are required for one complete round of DNA replication in E. coli?
TLS Online TPP Program

#Question id: 12902

#SCPH06 I Botany

An extension of microarray technology may also be used to analyze tissue sections,this process is known as_____
TLS Online TPP Program

#Question id: 14861

#SCPH05 I Biotechnology

A fermentation slurry containing Streptomyces kanamyceticus cells is filtered using a continuous rotary vacuum filter. 120 kg h- 1 slurry is fed to the filter; 1 kg slurry contains 60 g cell solids. To improve filtration rates, particles of diatomaceous-earth filter aid are added at a rate of 10 kg h- 1. The concentration of kanamycin in the slurry is 0.05% by weight. Liquid filtrate is collected at a rate of 112 kg h-1; the concentration of kanamycin in the filtrate is 0.045% (w/w). Filter cake containing cells and filter aid is continuously removed from the filter cloth.
If the concentration of kanamycin in the filter-cake liquid is the same as in the filtrate, how much kanamycin is absorbed per kg filter aid?.,..... 10-4
TLS Online TPP Program

#Question id: 15608

#SCPH28 | Zoology

Melanins are light-absorbing biopolymers useful as topical sunscreens, sunlight-protective coatings for plastics, etc. Which gene is used for producing melanin.