Glencoe Science Level Blue

Chapter 2: Traits and How They Change

Section 1 Self-Check Quiz-Eng.

1
Which one of the following could be described as one of your traits?
A)the color of your shirt
B)the color of your eyes
C)what type of movies you like
D)what state you live in
2
How long have people been observing the inheritance of traits?
A)since the 1860s
B)since 1951
C)for the last 20 years
D)for thousands of years
3
Genes contain instructions that direct the synthesis of specific __________.
A)chromosomes
B)traits
C)DNA
D)proteins
4
An organism's phenotype depends on its genotype and the __________ effect on that genotype.
A)chromosome's
B)environment's
C)protein's
D)DNA's
5
Which one of the following is affected by internal environmental influences?
A)development of human brain cells
B)the shape of an apple
C)the thickness of tree leaves
D)flower color in hydrangea plants
6
Several pine trees with the same genotype are planted in a forest. At the end of five years, one tree is taller than the rest. Why might this be?
A)It has different genes.
B)It has different DNA.
C)It can produce different proteins.
D)Its environment is different.
7
What environmental factor can change the phenotype of a Siamese cat's color markings?
A)temperature
B)presence of water
C)light
D)food eaten
8
Some species of fish, including clown fish, are born with the ability to __________.
A)change genotypes
B)grow threadlike tails
C)change sex
D)develop lungs
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