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Biology: Science for Life

Colleen Belk, Virginia Borden Maier

Chapter 6

Are You Only as Smart as Your Genes? - all with Video Answers

Educators

Section 1

Learning the Basics

01:45

Problem 1

Describe the relationship between a gene, a protein, and a trait.

Bryan Lynn
Bryan Lynn
Numerade Educator
00:50

Problem 2

What factors cause quantitative variation in a trait within a population?

Derrick Danso
Derrick Danso
Numerade Educator
01:03

Problem 3

Can we predict the phenotypes of offspring from the phenotype of their parents? If yes, how? If no, why not?

Khalida Dawar
Khalida Dawar
Numerade Educator
00:33

Problem 4

An allele is a $\qquad$
A. version of a gene; B. dysfunctional gene; C. protein;
D. spare copy of a gene; $\mathbf{E}$. phenotype

Khalida Dawar
Khalida Dawar
Numerade Educator
01:09

Problem 5

Sperm or eggs in humans always $\qquad$ .
A. each have 2 copies of every gene; B. each have 1 copy of every gene; $C$. each contain either all recessive alleles or all dominant alleles; D. are genetically identical to all other sperm or eggs produced by that person; E. each contain all of the genetic information from their producer

Derrick Danso
Derrick Danso
Numerade Educator
01:30

Problem 6

A mistake or "misspelling" that occurs during the copying of a gene and results in a change in a gene is called a(n) $\qquad$
A. dominant allele; B. mutation; C. mistakes never occur in gene copying; D. dysfunction; E. improvement

SH
Sara Hendrix
Numerade Educator
01:28

Problem 7

Which of the following genotypes is heterozygous?
A. AA; B. Aa; C. $a ;$ D. AA BB; E. More than one of the above

Jessica Honkomp
Jessica Honkomp
Numerade Educator
03:51

Problem 8

When the effects of an allele are seen only when an individual carries 2 copies of the allele, the allele is termed $\qquad$
A. dominant; B. incompletely dominant; C. recessive;
D. codominant; E. genotypic

Eric Goldman
Eric Goldman
Numerade Educator
01:04

Problem 9

A quantitative trait $\qquad$
A. may be one that is strongly influenced by the environment; B. varies continuously in a population; $\mathbf{C}$. may be influenced by many genes; $\mathbf{D}$. has more than a few values in a population; E. all of the above are correct

Derrick Danso
Derrick Danso
Numerade Educator
01:06

Problem 10

When a trait is highly heritable, $\qquad$ .
A. it is influenced by genes; B. it is not influenced by the environment; $\mathbf{C}$. the variance of the trait in a population can be explained primarily by variance in genotypes;
D. a and c are correct; E. a, b, and c are correct

Derrick Danso
Derrick Danso
Numerade Educator