You Discover a Novel Protozoan Which Seems Able to Exist

question 27

Multiple Choice

You discover a novel protozoan which seems able to exist in the extreme salinity of the Dead Sea. Comparative examination of its enzyme structures against those of non-halophilic protozoa are most likely to reveal that ________________.

• A)the novel protozoan possesses enzymes where the outer protein surface has many acidic amino acid residues
• B)the novel protozoan possesses enzymes where the outer protein surface has many nonpolar amino acid residues
• C)the novel protozoan possesses enzymes where the outer protein surface has many cysteine-associated disulfide bridges
• D)all are equally likely possibilities

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Definitions:

Mitotic Cleavages

A series of cell divisions without growth phases that occur in the early embryo, leading to an increase in cell number and the formation of the multicellular structure.

Fertilization

The process of a sperm cell uniting with an egg cell, leading to the development of a fertilized egg or zygote.

Zygote

The initial cell formed when a sperm cell fertilizes an egg cell, representing the earliest stage of embryonic development.

Prenatal Development

The process of growth and development within the womb from conception to birth.