DNA, Genetics, And Evolution (3) Question Preview (ID: 17124)


DNA, Genetics And Evolution -Middle School - Life Science. TEACHERS: click here for quick copy question ID numbers.

Organisms with traits best suited to their environment are more likely to survive and reproduce; includes concepts of variation, overproduction, and competition which is called -
a) Natural Selection
b) Adaptation
c) Evolution
d) Mutation

This is any permanent change in a gene or chromosome of a cell; may be beneficial, harmful, or have little effect on an organism.
a) Adaptation
b) Mutation
c) Evolution
d) Natural Selection

These are similar organisms that successfully reproduce.
a) Populations
b) Human Beings
c) Species
d) Traits

This is a genetically determined characteristic or adaptation.
a) Species
b) Trait
c) Mutation
d) Adaptation

In the Punnett square, Black fur (B) is dominant over brown fur (b). What is the phenotype of all four offspring?
a) Black fur
b) Brown fur
c) White fur
d) A mix between black and brown

Curly hair, yellow fur, green eyes, and attached earlobes are all what kind of traits?
a) normal
b) weird
c) learned
d) inherited

In Deoxyribonucleic acid, thymine pairs with the nitrogen base -
a) adenine
b) cytosine
c) guanine
d) uracil

the hereditary material that controls all cellular activities is called -
a) cytoplasm
b) DNA
c) chloroplasts
d) ATP

Genetic engineering can be used in a variety of ways. If the methods of genetic engineering are used to insert human genes into the cytoplasm of bacteria, the bacteria will then-
a) destroy the foreign DNA
b) produce human proteins
c) become a new species of bacteria
d) no longer be bacteria

When scientists alter the genetic code of an organism, it is called -
a) mitochondrial DNA
b) a pedigree
c) genetic engineering
d) a mutation

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