(i) Comparative Biochemistry

Question 1

What are comparative studies used for?

Answer 1

Used to study the evolutionary relationships between organisms

Question 2

Describe the relation

The greater the similarity between different species-

Answer 2

The greater the similarity between different species, the more closely related the species are.

Question 3

If a species is more closely related, what does that tell you about the common ancestor?

Answer 3

The more closely related the species are, the more recent the common ancestor is in the evolutionary relationship.

Question 4

What is biochemistry?

Answer 4

Biochemistry is the study of the chemical substances and processes occurring in living organisms.

Question 5

How can comparative studies in biochemistry link to evolution?

Answer 5

DNA and protein sequences from different species can be compared to determine how closely related different species are

Question 6

How does DNA prove that living things are related?

Answer 6

DNA is universal

All living things use the same DNA code (same four bases), adding weight that all living things are related to each other and have evolved from a common ancestor.

Question 7

What is a genome?

Answer 7

The complete set of DNA in each cell in an organism is called the genome.