Sarah and two of her brothers have autism. Their parents do not have autism. Scientists perform exome sequencing of the parents and the children to identify mutant genes in the children. Which approach to identifying genes involved in autism is described here?


A) Multiple unrelated affected subjects

B) Trio analysis

C) Recessive analysis


C) Recessive analysis

Biology & Microbiology

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Which of the following is NOT true concerning homologous chromosomes?

a. There are two of each kind. b. Each parent contributes one of each homologous pair. c. Most homologous chromosomes carry the same genes for the same traits. d. The number of homologous chromosomes is doubled in each generation. e. Homologous chromosomes pair up during early meiosis.

Biology & Microbiology

Arrange the structures through which air passes upon entering the body in the proper sequence

1) alveolus 2) bronchus 3) larynx 4) bronchiole 5) pharynx 6) trachea a. 5 ? 3 ? 6 ? 2 ? 4 ? 1 b. 3 ? 5 ? 2 ? 6 ? 1 ? 4 c. 2 ? 4 ? 3 ? 5 ? 6 ? 1 d. 3 ? 6 ? 5 ? 2 ? 4 ? 1 e. 5 ? 6 ? 3 ? 4 ? 2 ? 1

Biology & Microbiology

What is a function of a fruit?

A) production of food for the developing embryo B) pollen dispersal C) seed dispersal D) pollinator attraction

Biology & Microbiology

Describe how rolling circle replication can generate multimers of replicated DNA

What will be an ideal response?

Biology & Microbiology