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Genes AVA year 8

Total questions: 20

Worksheet time: 15mins

Name
Class
Date
1.
ARE YOU READY FOR THIS QUIZ!?
a)
Yes
b)
No
c)
I hate u
d)
I love u
2.
Which sentence is FALSE?
a)
All organisms have 23 pairs of DNA.
b)
Chromosomes are made of genes.
c)
DNA is made out of 4 chemicals: adenine, cytosine, thymine, guanine
d)
DNA is the recipe for life.
3.
It is true that the color of an organism could be one of the deciding factor to ensure the species lives or dies out.
a)
True
b)
False
4.
The traits of an organism are passed to its offspring on small coded strands of DNA material called
a)
meiosis
b)
recessive traits
c)
genes
d)
heredity
5.
traits that show up more often
a)
dominant
b)
recessive
6.
The process in which a cell splits in two...
a)
cell nucleus
b)
cell division
c)
replication
d)
inherit
7.
True or False? A tightly wound bundle of DNA is a chromosome.
a)
False
b)
True
8.
True or False? One of a number of different forms of a gene is algae.
a)
True
b)
False
9.
T - tall and t = short
In the punnett square below, what belongs in the missing square
a)
tt
b)
Tt
c)
Bb
d)
TT
10.
B = brown fur  b = white fur
In the punnett square, what is the probability for white fur? 
a)
0%
b)
25%
c)
50%
d)
75%
11.

Which characteristic would most likely be inherited by a baby?

a)

brown hair

b)

his ability to walk

c)

crying a lot

d)

ability to jump high

12.

Some traits are inherited, some traits are acquired. Tongue rolling is...

a)

acquired trait

b)

inherited trait

13.

A dog rolls over and receives a treat. the dog rolls over again. this is an example of...

a)

learned behaivor

b)

inherited behavior

c)

instinctive behaivor

d)

adaptive behavior

14.
Where the better adapted organisms survive to pass traits along to offspring.
a)
Evolution
b)
Natural Selection
c)
Extinction
d)
Artifical Selection
15.

What is the advantage of having different shaped beaks?

a)

To be cool and look different from other species.

b)

To be able to eat the specific

food that is available in the environment.

c)

To protect itself against predators.

d)

To protect itself against prey.

16.
Why are advantageous traits more likely to be passed onto offspring?
a)
Because they are more likely to survive and reproduce.
b)
Because they come from dominant alleles.
c)
Because they come from recessive alleles.
d)
Because the trait is an acquired phenotype.
17.
Do organisms "decide" to evolve and change?
a)
Yes, they know they need to change to survive 
b)
No, they change because of natural selection
18.
Mutations are a change in what?
a)
DNA
b)
tRNA
c)
genotype
d)
phenotype
19.

What word describes a trait that helps an organism survive in its environment?

a)

natural selection

b)

mutation

c)

camouflage

d)

adaptation

20.

Scientist that contributed the most to our understanding of evolution

a)

Darwin

b)

Lamarck

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