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TLS Online TPP Program

#Question id: 4964

Which of the following statements provides the strongest evidence that prokaryotes evolved before eukaryotes?

#SCPH28 | Zoology

  1. the primitive structure of plants

  2. meteorites that have struck Earth

  3. abiotic laboratory experiments that produced liposomes

  4. The oldest fossilized cells resemble prokaryotes.

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TLS Online TPP Program

#Question id: 2737

#SCPH05 I Biotechnology

The linking number (Lk) of a closed-circular, double-stranded DNA molecule is changed by:
TLS Online TPP Program

#Question id: 1562

#SCPH01 Biochemistry

________ are cells of the mammalian innate immune response that help destroy tumors.
TLS Online TPP Program

#Question id: 11679

#SCPH28 | Zoology

After blood flow is artificially reduced at one kidney, you would expect that kidney to secrete more of the hormone known as ________.
TLS Online TPP Program

#Question id: 5247

#SCPH06 I Botany

Which of the following is not a protein or group of proteins required for conjugation to occur?
TLS Online TPP Program

#Question id: 5741

#SCPH28 | Zoology

In a mammal 2 Barr bodies are observed.  How many X chromosomes does the organism have?