Mutations

Question 0

Mutagenic Agents

Answer 0

Radiation , chemicals, x-Rays, ultra violet rays (they can cause mutations)

Question 1

Mutation

Answer 1

Any change in genetic information, MUST be in sex cells to be passes on to offspring

Question 2

Genetic mutations

Answer 2

Change in the DNA sequence ->causes a change in the amino acid sequence in protein

Question 3

List the sequence of what determines what

Answer 3

DNA determines amino acid sciences which determines protein shape which determines protein functions

Question 4

Point mutation

Answer 4

One nucleotide is changed for another

Question 5

Frame shift mutation

Answer 5

Addition or deletion of one or more nucleotides , Dangerous because EVERY amino acid after that point will be changed

Question 6

Chromosomal mutations

Answer 6

Can be detected by looking at a karyote (picture of chromosome)

Question 7

Nondisjunction

Answer 7

Chromosomes don’t separate properly during meiosis, result in one extra or one less chromosome , can cause Down syndrome

Question 8

Down syndrome

Answer 8

Trisomy 21(three 21st chromosome), mental retardation , almond shaped eyes, small ears, small head size, short , broad hands. Down’s syndrome karyotype

Question 9

Polypoidy

Answer 9

Extra sets of chromosomes or more than two( 3N,4N…) positive mutations in some plants

Question 10

Deletion and addition(insertion )

Answer 10

Portion of a chromosome is lost or added

Question 11

Inversion

Answer 11

Sections of chromosomes are switched around

Question 12

Translocation

Answer 12

Part of a chromosome is transferred to another