Chapter 3 Heredity

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Chapter 3 Heredity

• Review

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Question 1

• Humans have how many chromosomes in body cell?

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Answer

• 46

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Question 2

• True or False At present, there are no cures for
  human genetic disorders.

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Answer

• TRUE, most treatments work with symptoms.

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Question 3

• Name two genetic disorder.

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Answer

• Hemophilia
• Colored blindness
• Male patterned baldness
• Sickle cell anemia
• Down Syndrome

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Question 4

• What is it called when we take a picture of a
  cell during mitosis and cut and paste to match up
  the chromosomes?

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Answer

• Karyotype

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Question 5

• What is the bleeders disease called?

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Answer

• Hemophilia

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Question 6

• Blood types have 3 different alleles which makes
  this an example of _______ alleles.

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Answer

• MULTIPLE

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Question 7

• Name a disease that can be inherited from parents.

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Answer

• Hemophilia
• Colored blindness
• Male patterned baldness
• Sickle cell anemia

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Question 8

• Can Influenza be inherited? Also known as the FLU?

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Answer

• NO

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Question 9

• What is an allele?

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Answer

• Different forms of the same gene

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Question 10

• Describe Sickle Cell Anemia.
• What kind of cells are they?
• What about them changes if you have sickle cell
  anemia?

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Answer

• Blood cells
• Not a normal shape - pointy

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Question 11

• Explain how sex-linked traits are passed from
  parent to offspring.
• Father pass it to _________
• Mothers pass it to _________ or ________

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Answer

• Fathers
• Daughters to be carrier
• Mothers
• Sons to have disease
• Daughters to be carriers

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Question 12

• What Meiosis?

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Answer

• When chromosomes are reproduced to prepare for
  production of new SEX CELLS
• Egg or Sperm

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Question 13

• What do we call it when two chromosomes do not
  separate during meiosis?

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Answer

• Nondisjunction

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Question 14

• Name a sex-linked trait or disease we discussed?

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Answer

• Hemophilia
• Colored blindness
• Male Patterned Baldness

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Question 15

• Gene therapy means we are using pieces of DNA to
  change our ________.

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Answer

• DNA, chromosomes, genes

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Question 16

• Is Cystic Fibrosis and inherited or noninherited
  disease?

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Answer

• Inherited

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Question 17

• How many human alleles control your blood type?

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Answer

• 3
• A B O

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Question 18

• Sex-linked traits are carried on which chromosome?

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Answer

• X Chromosome

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Question 19

• What do we call a diagram that shows the path of
  an inherited disease through a family?

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Answer

• PEDIGREE

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Question 20

• How often is Down Syndrome present in newborns?

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Answer

• 1700

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Question 21

• Name one characteristic of a Down Syndrome child?

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Answer

• Broad hands and feet
• Short fingers and toes
• Flat bridge of nose
• Flat space between 1st and 2nd toe

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Develop 5 questions from your notes that were
missed in this review?