ETHC 210_Fall_2019. exam 1 practice materials 2019.pdf

Exam 1 ETHC 210 Fall 2019

Question 1

3 out of 3 points

Metagenomics involves the study of the DNA of all organisms within an ecosystem.

Selected Answer:

True

Question 2

3 out of 3 points

The human exome; a.is constructed of over 20,000 protein coding genes.

Selected Answer: True

Question 3

3 out of 3 points

The human somatic cell has 23 pairs of chromosomes.

Selected Answer: True

Question 4

3 out of 3 points

The microbiome is;

Selected Answer:

The microbes which live on the human body

Question 5

3 out of 3 points

Some companies are now offering to store regenerative blood stem cells for children once

they are born. These cells come from the;

Selected Answer:

Umbilical cord

Question 6

3 out of 3 points

In many cases adult stem cells can be used in place of embryonic stem cells allowing the life

of an embryo to be spared.

Selected Answer: True

Question 7

3 out of 3 points

Microfilaments are the only type of cytoskeleton fibers.

Selected Answer:

False

Question 8

3 out of 3 points

The human DNA is constructed of;

Selected Answer:

3.2 billion base pairs

Question 9

3 out of 3 points

There are now three domains of life based on three different cell types found in nature.

Selected Answer: True

Question 10

3 out of 3 points

Which of the following is true about the nucleolus?

Selected Answer:

Is found in eukaryotes

Question 11

0 out of 3 points

There are more than 290 specialized cell types in the human body.

Selected Answer: False

Question 12

3 out of 3 points

Cytokinesis is generally defined as the division of the cell nucleus

Selected Answer: False

Question 13

3 out of 3 points

Genes are often discussed as the genetic make-up of an individual but we can also talk about

them in populations. The genes in a population are collectively referred to as;

Selected Answer:

The gene pool

Question 14

3 out of 3 points

Familial hypercholesterolemia is a genetic disease also known as an “inborn error of

metabolism.”

Selected Answer: True

Question 15

3 out of 3 points

Which of the following is true about cystic fibrosis?

Selected Answer:

Involves a defect in the chloride anion channel

Question 16

3 out of 3 points

Interphase is part of the cell cycle.

Selected Answer: True

Question 17

3 out of 3 points

Which of the following is true about phospholipids?

Selected Answer:

They contain fatty acids

Question 18

3 out of 3 points

The tips of chromosomes are called telomeres.

Selected Answer: True

Question 19

3 out of 3 points

Stem cells renew tissues but are all lost in childhood.

Selected Answer: False

Question 20

3 out of 3 points

Polydactyly is a condition which leads to extra fingers and toes.

Selected Answer:

True

Question 21

3 out of 3 points

Syndactyly can be the result of decreased or faulty apoptosis.

Selected Answer: True

Question 22

3 out of 3 points

Cell cycle rate varies in different tissues at different times.

Selected Answer: True

Question 23

3 out of 3 points

Some intermediate filaments are made of keratin.

Selected Answer: True

Question 24

0 out of 3 points

In the last century, the 20th century, President Bill Clinton declared that which of the

following centuries would be the century of biology?

Selected Answer:

This century the 23rd century

Question 25

3 out of 3 points

The part of the genome which encodes for protein is called;

Selected Answer:

exome

Sunday, August 25, 2019 9:25:22 PM EDT

ETHC 210_Fall_2019. exam 1 practice materials 2019.pdf

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