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 1 st and 2 nd toe

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