Tag Archives: Biology

Trypsinogen Conversion

Trypsin is a proteolytic enzyme secreted by the pancreas in an inactive form (trypsinogen). Trypsinogen can be converted to trypsin by the action of:

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Characteristics of Histones

Histones are a kind of protein that is known to play a very important role in packaging DNA into chromatin. What of the following characteristics about histones is true?

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Mesoderm Germ Layer

In the developing embryo, which of the following would be formed from the mesoderm germ layer?

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Amoeboid Organisms

The group of organisms that are amoeboid and exhibit a slug stage are:

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Cell Functions

Glycosylation, sulfation and phosphorylation (of proteins) represent functions of which cell organelle?

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Exchange Genetic Information

During what stage of meiosis do homologous chromosomes exchange genetic information?

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Cytotoxic T-cells

Which of the following is the chemical released by activated cytotoxic T-cells to fight a viral infection?

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Human Respiratory Rate

The human respiratory rate is regulated by chemoreceptors that monitor which of the following?

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Special Fungi

Which of the following is a specialized type of fungi that lives on the roots of many vascular plants and enables nutrient absorption?

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The Offspring

A black-eyed, black coat rabbit, is crossed with a red-eyed, white coat rabbit. If the offspring is black-eyed and white coat, this is due to which of the following?

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