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Science Olympiad Trivia #2 2019-2020

Total questions: 26

Worksheet time: 9mins

Name
Class
Date
1.

If two alleles are the same for a certain trait they are considered

a)

Homozygous

b)

Twins

c)

Heterozygous

d)

Common

2.

What is the phenotypic ratio when you cross Tt with tt?

T = tall, t = short


The following ratios are for Tall : Short

a)

3:1

b)

1:1

c)

All tall

d)

All short

3.
Choose the nucleotide sequence of the RNA strand that would be complementary to the following strand: 
GTAGTCA
a)
UATUAGA
b)
ACGACTG
c)
CAUCAGU
d)
CATCAGT
4.
What is the term for a three-nucleotide sequence that codes for an amino acid?
a)
base
b)
codon
c)
amine
d)
serine
5.
The main function of tRNA is to...
a)
carry a message that, when translated, forms proteins
b)
form a portion of ribosomes
c)
string together complementary RNA and DNA strands
d)
bring amino acids from the cytoplasm to the ribosomes
6.

Name the type of joint that have little or no movement.

a)

movable

b)

immovable

c)

Ball and Socket

d)

Hinge

7.

A living bone's surface is covered with a tough, tight-fitting membrane called the _________________________.

a)

periosteum

b)

cartilage

c)

marrow

d)

compact bone

8.
These muscles are found in your organs
a)
Skeletal
b)
Smooth
c)
Rough
d)
Cardiac
9.
Which of the following describes the sarcomere? 
a)
The basic unit of muscle’s cross-striated myofibril
b)
. A protein band which defines the boundary between one sarcomere 
c)
 Various muscle proteins 
d)
Contains the protein, actin
10.
What is the effect of salt water on the average of the height of the 3 tallest blades of grass?
What is the independent variable in the above question?
a)
salt water
b)
height
c)
average
d)
effect
11.
2 ways that scientific investigations can be retested are:
a)
measurement and control
b)
repetition and replication
c)
defining a problem and hypothesizing
d)
concluding and analyzing
12.
A description of how something always occurs in nature
a)
Law
b)
Theory
c)
Model
d)
Conclusion
13.
Does the size of deer effect the size of its heart?
What is the IV?
a)
Size of Deer
b)
Gender of Deer
c)
Size of its heart
d)
Age of deer, gender, and height
14.
To test the effects of roller coaster height on speed, what factors should you keep constant if my only tool is a stopwatch? 
a)
Number of people on it 
b)
Time of day
c)
Air temperature
d)
Time on the ride
15.

An acute disease lasts for a ___________ amount of time.

a)

Long

b)

Short

16.

What does the body produce to help fight infections the next time the pathogen enters the body?

a)

White blood cells

b)

Antibodies

c)

Allergies

d)

Pathogens

17.

What system kicks in if a pathogen gets past the initial barriers of the skin, mouth, stomach, and breathing passages?

a)

Brain System

b)

Heart System

c)

Lymphatic System

d)

Blood System

18.

The hot and humid weather in Texas during the summer is most likely due to what type of air mass?

a)

continental polar

b)

continental tropical

c)

maritime polar

d)

maritime tropical

19.

Low-pressure systems are usually associated with ________ weather.

a)

cold and dry

b)

cloudy and rainy

c)

sunny and dry

d)

warm and humid

20.

Who matches the crime scene DNA?

a)

suspect #1

b)

suspect #2

c)

suspect #3

d)

none of the suspects match the DNA

21.
Based on these results whose blood was found in the blood stain at the crime scene?
a)
Bob
b)
Sue
c)
John
d)
Lisa
22.
What is the purpose of gel electrophoresis?
a)
helps cut DNA
b)
count the genes in DNA
c)
separates DNA based on size
d)
allows for an exact replicated organism
23.

This is a picture of what kind of medulla

a)

Continuous

b)

Fragmented

c)

Absent

24.
A microscopic examination can reveal whether a hair is from a man or a woman.
a)
true
b)
false
25.
Forcibly removed hairs are most likely to provide useful DNA evidence.
a)
true
b)
false
26.
The protein that makes up hair is called _____
a)
ninhydrin
b)
pigments 
c)
medulla
d)
keratin

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