Log inSign up for FREE
Library

Tour the Basics

Last updated almost 8 years ago
27 questions
Note from the author:
Heredity Basics
Visit http://learn.genetics.utah.edu/content/basics/oldtour/ . Explore this activity to find the answers to the questions below.
NOTE: THE ACTIVITY AND THE SEQUENCE YOU SEE HERE ARE DIFFERENT! MAKE SURE YOU GO IN THE CORRECT ORDER.
I highly recommend that open the link in a new window and follow along in a side by side manner.
1

What is DNA?

1

What does “DNA” stand for?

1

What is the four-letter DNA alphabet and what are the special rules by which the alphabet pieces bond together?

1

What is a gene?

1

What are genes made of?

1

How many genes do humans have?

1

Genes contain the instructions for building what kind of molecules?

1

What is a chromosome?

1

How many chromosomes does a human cell hold? (please write a number)

1

How are the human sex chromosomes labeled?

1

How many different kinds of proteins does one cell contain?

1

Why do scientists use computer programs to model protein structure and function?

1

What provides the “blueprint” for making a protein?

1

Which organelle is responsible for actually making proteins?

1

What is heredity?

1

Why aren’t children identical to either one of their parents?

1

In humans, how many chromosomes does each parent pass on to their offspring?

1

The second baby in the “What is Heredity?” animation inherited the exact same chromosomes as the first?

1

Both babies have a complete set.

1

What is a trait?

1

Select the three types of traits

1

Give an example of how environmental factors can influence a trait.

1

What is an allele?

1

What does the term homozygous mean?

1

What happens when two different alleles are present?

1

What does the term heterozygous mean?

1

All humans share 99.9% identical DNA