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TLS Online TPP Program

#Question id: 8783

Which of the following statements is accurate, at least according to our present knowledge?

#Unit 9. Diversity of Life Forms
  1. Eukaryotes acquired nuclear genes only in the distant past; these genes can allow survival in anaerobic environments.
  2. Genes from prokaryotes have been acquired by some eukaryotes; these genes can allow survival in extreme environments.
  3. Prokaryotes acquired genes from eukaryotes many times; these genes can allow survival in extreme environments.
  4. Prokaryotes acquired genes from fungi; these genes can allow the digestion of cellulose.
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TLS Online TPP Program

#Question id: 5552

#Unit 5. Developmental Biology

Soon after gastrulation, dorsal ectodermal cells condense and form a tube called the _______________ tube.
TLS Online TPP Program

#Question id: 5554

#Unit 5. Developmental Biology

Even in the absence of sperm, metabolic activity in an egg can be artificially activated by ________.
TLS Online TPP Program

#Question id: 5555

#Unit 5. Developmental Biology

The formation of the fertilization envelope requires an increase in the cytosolic concentration of ________.
TLS Online TPP Program

#Question id: 5687

#Unit 8. Inheritance Biology

The error in meiosis that produces a 47,XYY karyotype is best  described by
TLS Online TPP Program

#Question id: 5688

#Unit 8. Inheritance Biology

Which of the following are not cause of aneuploidy
TLS Online TPP Program

#Question id: 5689

#Unit 8. Inheritance Biology

What kind of aneuploidy gamete will be generated if meiotic nondisjuction in second division (n represent haploid number of chromosome )