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Melinda's 2015 Mid-Term Biology Practice Questions

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Biology Winter Tri Mid-Term Quiz

Question 1 of 23

1

What determines a proteins function?

Select one of the following:

  • A protein' shape

  • A protein's oxidation

  • A protein's color

  • A cell's shape

Explanation

Question 2 of 23

1

What happens when hemoglobin mutates at a critical point?

Select one of the following:

  • The function changes

  • The shape changes

  • Nothing changes

Explanation

Question 3 of 23

1

What are the types of hereditary traits?

Select one or more of the following:

  • Preferances

  • Predisposition to medical disorders/diseases

  • Behavioral traits

  • Opinions

  • Physical traits

Explanation

Question 4 of 23

1

Males have two Y chromosomes and females have one Y and one X chromosome

Select one of the following:

  • True
  • False

Explanation

Question 5 of 23

1

How many chromosomes do humans have and where do they come from?

Select one of the following:

  • 48 (24 from the mother and 24 from the father)

  • 48 (12 from the mother, 12 from the father, and 24 are created once the baby is concieved)

  • 46 (23 from the mother and 23 from the father)

  • 46 (24 from the mother and 22 from the father)

  • 50 (25 from the mother and 25 from the father)

Explanation

Question 6 of 23

1

How many natural amino acids are there?

Select one of the following:

  • 21

  • 12

  • 56

  • 20

Explanation

Question 7 of 23

1

The nucleus of a cell is like a computer's hard-drive

Select one of the following:

  • True
  • False

Explanation

Question 8 of 23

1

The DNA of a cell (held in the nucleus) is like a computers software

Select one of the following:

  • True
  • False

Explanation

Question 9 of 23

1

mRNA act like cellular 3-D printers

Select one of the following:

  • True
  • False

Explanation

Question 10 of 23

1

Ribosomes act like messengers or flashdrives within the cell, sending copies of software

Select one of the following:

  • True
  • False

Explanation

Question 11 of 23

1

Genes are made of nucleotides (A, T, C, and G)

Select one of the following:

  • True
  • False

Explanation

Question 12 of 23

1

Genes are instructions for printing proteins

Select one of the following:

  • True
  • False

Explanation

Question 13 of 23

1

Amino acids are used to build the nucleus

Select one of the following:

  • True
  • False

Explanation

Question 14 of 23

1

tRNA are "truckers" that bring amino acids to ribosomes that are creating proteins

Select one of the following:

  • True
  • False

Explanation

Question 15 of 23

1

One gene is enough DNA to give ribosomes protein making instructions

Select one of the following:

  • True
  • False

Explanation

Question 16 of 23

1

What is a misspelling (in terms of genetics)?

Select one of the following:

  • A mutation in genetic code

  • When mRNA prints the wrong proteins

  • When you use the wrong letters to spell a word

  • When you miss or skip the first step of cellular division

Explanation

Question 17 of 23

1

DNA polymerase is the editing enzyme

Select one of the following:

  • True
  • False

Explanation

Question 18 of 23

1

Where does transcription take place?

Select one of the following:

  • The ribosomes of a cell

  • The nucleus

  • The cytosol

  • The cell wall

Explanation

Question 19 of 23

1

Where does translation occur?

Select one of the following:

  • The ribosomes of a cell

  • The nucleus

  • The cytosol

  • The cell wall

Explanation

Question 20 of 23

1

What is transcription

Select one of the following:

  • The process of converting DNA code into mRNA code

  • The process of converting DNA code into proteins

  • The process of converting mRNA code into proteins

  • The process of converting proteins into DNA

Explanation

Question 21 of 23

1

What is translation?

Select one of the following:

  • The process of converting DNA code into mRNA code

  • The process of converting DNA code into proteins

  • The process of converting mRNA code into proteins

  • The process of converting proteins into DNA

Explanation

Question 22 of 23

1

During the DNA replication process, a double helix is unzipped and both sides' genetic codes are matched to create two identical double helices.

Select one of the following:

  • True
  • False

Explanation

Question 23 of 23

1

What is helicase?

Select one of the following:

  • an cell

  • an enzyme that unzips a double helix

  • a metal briefcase

  • a enzyme that converts DNA into mRNA

Explanation

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