Lesson 8.2

Question 1

Blind Spot

Answer 1

The small circular area in the retina where the optic nerve enters the eye that is devoid of rods and cones and is insensitive to light

Question 2

Central Nervous system

Answer 2

The part of the nervous system which in vertebrates consists of the brain and spinal cord, to which sensory impulses are transmitted and from which motor impulses pass out, and which supervises and coordinates the activity of the entire nervous system

Question 3

Brain Stem

Answer 3

The part of the brain connecting the spinal cord with the forebrain and cerebrum

Question 4

Cerebellum

Answer 4

A large projecting part of the brain concerned especially with the coordination of muscles and the maintenance of bodily equilibrium, situated between the brain stem and back of the cerebrum

Question 5

Cerebrum

Answer 5

The integrating center for memory, learning, emotions, and other highly complex function of the central nervous system composed of right and left hemispheres

Question 6

Chromosome

Answer 6

Any of the usually linear bodies in the cell nucleus that contain the genetic material

Question 7

Deoxyribonucleic Acid (DNA)

Answer 7

A double-stranded, helical nucleic and molecule that determines the inherited structure of a cells proteins

Question 8

Dominant Trait

Answer 8

A genetic trait is considered dominant if it is expressed in a person who has only one copy of the gene associated with the trait

Question 9

Gel Electrophoresis

Answer 9

The separation of nucleic acids or proteins, on the basis of their size and electrical charge, by measuring charge, by measuring their rate of movement through an electrical field in a gel

Question 10

Gene

Answer 10

A discrete unit of hereditary info consisting of a specific nucleotide sequence in DNA

Question 11

Mutation

Answer 11

A rare change in the DNA of a gene, ultimately creating genetic diversity

Question 12

Nervous System

Answer 12

The bodily system that in vertebrates is made of the brain and spaniel cord, nerves, ganglia, and parts of the receptor organs and that receives and interprets stimuli and transmits impulses to the effector organs

Question 13

Neuron

Answer 13

A nerve cell; the fundamental unit of the nervous system

Question 14

Noise- Induced Hearing Loss

Answer 14

Hearing loss or impairment resulting from exposure to loud sound

Question 15

Optic Nerve

Answer 15

Either of the pair of Sesotho nerves that comprise the second pair of cranial nerves, arise from the central part of the diencepehalon, form an optic chasms before passing to the eye and spreading over the anterior surface of the retina, and conduct visual stimuli to the brain

Question 16

Pedigree

Answer 16

A diagram of a family tree showing the occurrence of heritable characters in parents and offspring over multiple generations

Question 17

Recessive Trait

Answer 17

A condition that appears only in individuals who have received two copies of a mutant gene, one copy from each parent