A(n) __________is an inherited trait that increases an organism’s chance of survival and reproduction.
Question 5
5.
Question 6
6.
Using complete sentences, compare AND contrast genetic engineering and artificial selection.
Question 7
7.
A dog breeder prefers very pointy noses for his dogs. So, he breeds dogs with the most pointed noses he can find in hopes of getting puppies with very pointy noses. This process is called _______ .
Question 8
8.
_______ is an example of an environmental extreme that an organism might need to adapt to in order to survive.
Question 9
9.
Question 10
10.
Question 11
11.
Using complete sentences, explain why Darwin's theory of natural selection is sometimes described as "survival of the fittest"?
Question 12
12.
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13.
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14.
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Question 20
20.
A difference in beak shape among members of the same finch species is an example of variation.
True
False
Food we eat has not been modified through selective breeding.
True
False
Which of the following is a behavioral adaptation?
alligators’ eyes being on top of their heads to help them see above the water
tree frogs having long, sticky tongues
blue whales migrating to mate and give birth
hedgehogs having stiff spines sticking out of their bodies
Choose ALL that apply.
An adaptation is _______.
is an inherited trait.
increases a species’ chances of surviving.
increases a species’ chances of reproducing.
the result of a mutation that was beneficial to the population.
A mutation can be inherited.
True
False
A trait in a genetically engineered organism can be inherited.
True
False
Which of the following is NOT part of a chromosome?
proteins
cell
deoxyribonucleic acid
amino acids
Match the nitrogenous base with it's pair.
Thymine
Thymine
Adenine
Guanine
Guanine
Adenine
Cytosine
Cytosine
Match the type of RNA on the left with the correct function on the right.
mRNA
rRNA
tRNA
carries instructions for protein synthesis from the nucleus to the cytoplasm
carries amino acids to the ribosome and mtches them to the coded mRNA message
forms an important part of the ribosome
Genes contain the instructions for assembling
chromosomes
proteins
nucleosomes
traits
Inherited traits are:
Dependent on diet
Acquired during an organism’s life
Free of mutations
Passed on from parent to offspring
Gregor Mendel observed that pea plant traits did not blend in their offspring. This led him to conclude that:
Traits are inherited in separate units
Offspring inherit genes from only one parent
Pea plants do not have genes
Traits are not inherited
Artificial selection can occur naturally without human intervention.
True
False
Artificial selection can only be used to improve the physical appearance of an organism, not its behavior or ability to survive.
True
False
Artificial selection is often used by farmers, plant breeders, and animal breeders to produce organisms that are more productive, disease-resistant, or aesthetically pleasing. (aesthetically pleasing is another way to say "looks nice")