What was one of Darwin's key insights about the diversity of living organisms?

DNA Hybridization and Evolutionary Relationships

Interactive Video
•
Biology
•
9th - 10th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
All species are unrelated.
Species have evolved from common ancestors.
All species have the same genetic makeup.
Species do not change over time.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does a phylogenetic tree represent?
The evolutionary relationships among species.
The lifespan of different species.
The unrelatedness of species.
The genetic makeup of a single species.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is punctuated equilibrium?
A theory that species evolve gradually over time.
A theory that species remain unchanged for long periods and then undergo rapid changes.
A theory that all species evolve at the same rate.
A theory that species do not evolve at all.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do genetic changes help in measuring relatedness between species?
By showing that all species are identical.
By indicating the number of generations since a common ancestor.
By demonstrating that all species have the same DNA.
By proving that species do not change over time.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of fewer genetic differences between species?
It indicates a longer time since a common ancestor.
It indicates a shorter time since a common ancestor.
It shows that species are unrelated.
It proves that species have identical DNA.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is DNA hybridization used for?
To compare the relatedness of species without sequencing.
To sequence the entire genome of a species.
To measure the lifespan of a species.
To create new species.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does DNA hybridization determine the relatedness of species?
By comparing the color of DNA strands.
By measuring the temperature needed to separate hybridized DNA.
By counting the number of DNA strands.
By observing the physical appearance of species.
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