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TLS Online TPP Program

#Question id: 4345

For a repressible operon to be transcribed, which of the following conditions must occur?

#SCPH01 Biochemistry

  1. A corepressor must be present.

  2. RNA polymerase and the active repressor must be present.

  3. RNA polymerase must bind to the promoter, and the repressor must be inactive.

  4. RNA polymerase must not occupy the promoter, and the repressor must be inactive.

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TLS Online TPP Program

#Question id: 5565

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

Among these choices, the largest cell involved in frog reproduction is ________.
TLS Online TPP Program

#Question id: 5565

#SCPH06 I Botany

Among these choices, the largest cell involved in frog reproduction is ________.
TLS Online TPP Program

#Question id: 5565

#SCPH28 | Zoology

Among these choices, the largest cell involved in frog reproduction is ________.
TLS Online TPP Program

#Question id: 5566

#SCPH01 Biochemistry

In some rare salamander species, all individuals are females. Reproduction relies on those females having access to sperm from males of another species. However, the resulting embryos receive no genetic contribution from the males. Why do you think sperm are necessary for reproduction?
TLS Online TPP Program

#Question id: 5566

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

In some rare salamander species, all individuals are females. Reproduction relies on those females having access to sperm from males of another species. However, the resulting embryos receive no genetic contribution from the males. Why do you think sperm are necessary for reproduction?
TLS Online TPP Program

#Question id: 5566

#SCPH06 I Botany

In some rare salamander species, all individuals are females. Reproduction relies on those females having access to sperm from males of another species. However, the resulting embryos receive no genetic contribution from the males. Why do you think sperm are necessary for reproduction?