living environment quiz

Question 1

what is a mutation?

Answer 1

any change to the genetic material

Question 2

most mutations are _____ and lead to…

Answer 2

harmful

the death of a cell/organism

Question 3

very rare mutations are/lead to….

Answer 3

helpful

lead to a cell or organism that is better adapted to survive and to a process called evolution

Question 4

where do mutations take place

Answer 4

somatic cells (body cells) and gametes (sex cells)

Question 5

somatic cell (body cell) mutations are not..

Answer 5

passed on to the offspring

Question 6

gametes (sex cells) are passed on to…

Answer 6

the offspring

Question 7

a chromosomal mutation occurs when…

Answer 7

all or part of a chromosome or chromosome set has been changed

Question 8

chromosomal mutations are usually….

Answer 8

easy to observe as so many genes are involved

Question 9

polyploidy

Answer 9

when an individual inherits an extra set of chromosomes

Question 10

a severe mutation that will result in the death of the organism

Answer 10

polyploidy

Question 11

organisms that survive being ________, usually plants, are ______

Answer 11

polyploid

sterile

Question 12

crossing over occurs when….

Answer 12

there is an exchange of segments between homologous chromosomes

Question 13

crossing over usually results in..

Answer 13

neutral mutations

Question 14

addition takes place when

Answer 14

a segment from a non homologous chromosome attaches itself to a chromosome

Question 15

delete takes place when

Answer 15

a segment is removed from a chromosome