Chapter 3 Science Study Guide

Question 1

Learning to play the piano is an example of an

Answer 1

ACQUIRED TRAIT

Question 2

Having ancestors that come from the same seed are called

Answer 2

PURE BRED

Question 3

The offspring of two different kinds of ancestors is called a

Answer 3

HYBRID

Question 4

In pea plants, purple flower color is a (blank) because it appears in hybrid plants

Answer 4

DOMINANT TRAIT

Question 5

Green seed color in pea plants is an example of a (blank) because it may not appear in the offsprint

Answer 5

RECESSIVE TRAIT

Question 6

A tool used to predict the outcome of a genetic cross is called a

Answer 6

PUNNENT SQUARE

Question 7

The mating of organisms to promote desirable traits is called

Answer 7

SELECTIVE BREEDING

Question 8

(blank) represents the genes an organism inherits for a particular trait

Answer 8

GENOTYPE

Question 9

The way in which the genes are expressed for a particular trait represents an organism’s

Answer 9

PHENOTYPE

Question 10

(blank) is used to trace the history of a trait in a family

Answer 10

A PEDIGREE

Question 11

A (blank) is an organism that has inherited the gene for a particular trait but does not express that trait

Answer 11

CARRIER

Question 12

(blank) is a genetic disorder caused by a recessive, sex-linked gene

Answer 12

HEMOPHILIA

Question 13

(blank) is a genetic disorder caused by an extra chromosome

Answer 13

DOWN SYNDROME

Question 14

All the DNA in an organism makes up its

Answer 14

GENOME

Question 15

(blank) is changing the DNA sequence of a gene in an organism

Answer 15

GENETIC ENGINEERING

Question 16

(blank) is the process of combining genes from one organism with the genes of another organism to produce medicines

Answer 16

GENE SPLICING

Question 17

An organism is known as a (blank) if it is genetically identical to one of its parents

Answer 17

CLONE

Question 18

(blank) could be seen in the differences in the coat color of horses

Answer 18

VARIATION

Question 19

A change in an organism’s DNA is a

Answer 19

MUTATION

Question 20

(blank) is known as the survival organisms best suited for the environment

Answer 20

NATURAL SELECTION