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26 Cards in this Set
- Front
- Back
Since Creation, God has caused at least two major global changes. What were they?
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(1) God cursed the ground because of Adam and Eve's sin. Since then man has had to work for food he takes form the ground. (2) God sent a worldwide flood.
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What has happened to "life span" since creation?
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It has continually decreased - from about 900 years for Noah to about 64 years now.
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How does the decreasing lifespan contradict evolutionary claims that organisms are generally improving?
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Decreasing life span shows that man has experienced degeneration, not evolution.
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Define: Mutation
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any change in an organism's genetic material.
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Define: albinism
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is caused by a mutation that affects the pigment-producing cells in skin making a persons skin and hair white
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Define: lethal mutations
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mutations that cause death (sometimes before the organism is born - sometimes after)
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gene mutations
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one of the main types of mutations. Many human genetic disorders are believed to be gene mutations. Occurs when there are changes in the sequence of bases in the segment of DNA that makes up a gene.
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Are all gene mutations harmful?
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No. Some gene mutations can be unnoticable, some harmful, some lethal.
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Define: somatic mutations
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mutations that occur in body cells (cells that do not make gametes)
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Why are "somatic mutations" not passed on to future generations?
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Because they occur in body cells that do make gametes.
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Define: Germ mutations
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mutations that occur in gametes or the cells that form gametes
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Can "germ mutations" pass to future generations?
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Yes, because they occur in gametes or the cells that form gametes.
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Define: chromosomal change
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a change involving the number of chromosomes or the number or location of genes on a chromosome
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Name some human genetic disorders that are the result of gene mutations.
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(1) hemophilia (2) muscular dystrophy (3) cystic fibrosis
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Define: hemophilia
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"bleeder's disease" or the "disease of royalty" - Queen Victoria had it - blood does not have clotting chemicals
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Define: muscular dystrophy
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a disease where people lose control of their muscles
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Define: cystic fibrosis
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a disease that affects both the mucous glands and sweat glands of the body where thick, sticky mucus plugs the glands.
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Define: diploid
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having two sets of chromosomes
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Define: ploidy
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the number of sets of chromosomes
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Define: Down Syndrome
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A human disorder usually caused by a change in "ploidy" - People with Down Syndrom have three (rather than two) of some chromosomes. The people have lower than average mentailty, short stature, stubby hands and feet.
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Section 8A - Question 1
A __________ is a change in an organism's genetic makeup. |
mutation
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Section 8A - Question 2
What are mutations that result in death called? |
lethal mutations
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Section 8A - Question 3
Explain why somatic mutations are not passed on to the next generation. |
they occur in body cells (cells that do not make gametes)
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Section 8A - Question 4
Were all of Queen Victoria's children equally affected ty hemophilia? Explain |
No. one child had it; two were carriers.
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Section 8A - Question 5
What does "diploid" mean? |
two sets of chromosomes
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Section 8A - Question 6
What type of mutation usually causes Down syndrome? |
ploidy
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