Describe the approach using genomics to identify genes that contribute to the variations in cognitive ability observed

in humans.What will be an ideal response?


ANSWER: This approach uses SNPs and other DNA markers to identify chromosome regions that
contain genes related to specific traits. Identifying the number of these regions associated
with variation in a specific phenotype is an indirect way of determining whether that
phenotype is controlled by many genes, each having a small effect, or by a small number of
genes, each with a major effect on the phenotype. One study has provided strong evidence
that a large proportion of individual differences in intelligence is due to genetic variation, and
that many genes, each with a small additive effect, are involved in these differences

Biology & Microbiology

You might also like to view...

A shift from expected allele frequencies, resulting from chance, is known as

(a) natural selection. (b) genetic drift. (c) mutation. (d) gene flow.

Biology & Microbiology

Identify the structure of the neuron marked D

a. axon terminal b. cell body c. axon d. glial cell e. dendrites

Biology & Microbiology

Using biotechnology, plant breeders attempt to find and incorporate specific resistance genes into plants that lack them. Once a plant has been given a resistance gene, it will have indefinite protection from the associated pathogen.

Answer the following statement true (T) or false (F)

Biology & Microbiology

Which of the following pairs of terms is mismatched?

A) bacteriostatic — kills vegetative bacterial cells B) germicide — kills microbes C) virucide — inactivates viruses D) sterilant — destroys all living microorganisms E) fungicide — kills yeasts and molds

Biology & Microbiology