ASVAB General Science Practice Test 341419 Results

	Your Results	Global Average
Questions	5	5
Correct	0	2.90
Score	0%	58%

Review

Within DNA, a variety of a particular gene is called a(n):

55% Answer Correctly

	homozygous
	heterozygous
	chromosome
	allele

Solution

The gene is the base unit of inheritance and is contained within DNA. A gene may come in several varieties (alleles) and there are a pair of alleles for every gene. If the alleles are alike, a person is homozygous for that gene. If the alleles are different, heterozygous.

Which of the following describes the Earth's outer core?

45% Answer Correctly

	primarily solid
	liquid
	makes up most of the Earth's volume
	solid

Solution

The Earth's core is divided into the liquid outer core (1,430 miles or 2,300 km radius) and the solid inner core (745 miles or 1,200 km radius).

The dwarf planet Pluto is located where?

63% Answer Correctly

	in the asteroid belt
	in the Kuiper Belt
	outside the solar system
	between the orbits of Jupiter and Saturn

Solution

The Kuiper Belt is similar to the asteroid belt but much larger. Extending beyond the orbit of Neptune, it contains objects composed mostly of frozen methane, ammonia, and water. Most notably, the Kuiper Belt is home to Pluto, a dwarf planet that, until a 2006 reclassification, was considered the ninth planet of the solar system.

What part of the brain is responsible for the major senses (thinking, hearing, seeing)?

65% Answer Correctly

	cerebrum
	medulla
	cerebellum
	brainstem

Solution

The cerebrum is the major part of the brain and is responsible for the main senses (thinking, hearing, seeing).

Which of the following describes how a person's genes express themselves in physical characteristics?

61% Answer Correctly

	phenotype
	chromotype
	DNA
	genotype

Solution

A person's genotype is their genetic makeup and includes both dominant and recessive alleles. Phenotype is how the genes express themselves in physical characteristics.