chapter 3 heredity review. question 1 humans have how many chromosomes in body cell?
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Chapter 3 Heredity
Review
Question 1
• Humans have how many chromosomes in body cell?
Answer
• 46
Question 2
• True or False: At present, there are no cures for human genetic disorders.
Answer
• TRUE, most treatments work with symptoms.
Question 3
• Name two genetic disorder.
Answer
• Hemophilia
• Colored blindness
• Male patterned baldness
• Sickle cell anemia
• Down Syndrome
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?
Answer
• Karyotype
Question 5
• What is the bleeder’s disease called?
Answer
• Hemophilia
Question 6
• Blood types have 3 different alleles which makes this an example of _______ alleles.
Answer
• MULTIPLE
Question 7
• Name a disease that can be inherited from parents.
Answer
• Hemophilia
• Colored blindness
• Male patterned baldness
• Sickle cell anemia
Question 8
• Can Influenza be inherited? Also known as the FLU?
Answer
• NO
Question 9
• What is an allele?
Answer
• Different forms of the same gene
Question 10
• Describe Sickle Cell Anemia.– What kind of cells are they?– What about them changes if you have sickle
cell anemia?
Answer
• Blood cells
• Not a normal shape - pointy
Question 11
• Explain how sex-linked traits are passed from parent to offspring.– Father – pass it to _________– Mothers – pass it to _________ or ________
Answer
• Fathers– Daughters to be carrier
• Mothers– Sons to have disease– Daughters to be carriers
Question 12
• What Meiosis?
Answer
• When chromosomes are reproduced to prepare for production of new SEX CELLS
• Egg or Sperm
Question 13
• What do we call it when two chromosomes do not separate during meiosis?
Answer
• Nondisjunction
Question 14
• Name a sex-linked trait… or disease we discussed?
Answer
• Hemophilia
• Colored blindness
• Male Patterned Baldness
Question 15
• Gene therapy means we are using pieces of DNA to change our ________.
Answer
• DNA, chromosomes, genes…
Question 16
• Is Cystic Fibrosis and inherited or noninherited disease?
Answer
• Inherited
Question 17
• How many human alleles control your blood type?
Answer
• 3
A B O
Question 18
• Sex-linked traits are carried on which chromosome?
Answer
• X Chromosome
Question 19
• What do we call a diagram that shows the path of an inherited disease through a family?
Answer
• PEDIGREE
Question 20
• How often is Down Syndrome present in newborns?
Answer
• 1:700
Question 21
• Name one characteristic of a Down Syndrome child?
Answer
• Broad hands and feet
• Short fingers and toes
• Flat bridge of nose
• Flat space between 1st and 2nd toe
Develop 5 questions from your notes that were missed in this review?
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