GENETICS By: Noor, Doris, Fhamida

JEOPARDY BOARD Crosses and Inheritance Sex-linked/ PedigreeDiseases $100 $200 $300 $400 $500 FINAL JEOPARDY

The inheritance of skin color in a human is an example of which of the following? 1.Pleiotropy 2.Codominance 3.Epistasis 4.Polygenic inheritance 5.Gene linkage Topic 1 - $100 Question Click to see answer

4. Topic 1 - $100 Answer Click to return to Jeopardy Board

Red-headed people frequently have freckles. This is best explained by which of the following? 1.The genes for these two traits are linked on the same chromosome. 2.The genes for these two traits are sex-linked. 3. Nondisjunction occurs frequently with chromosomes bearing these traits. 4.Alleles for these two traits are codominant. 5.Both parents have red hair and freckles Topic 1 - $200 Question Click to see answer

1. Topic 1 - $200 Answer Click to return to Jeopardy Board

Which of the following statements is true? 1.A dihybrid cross is a cross between individuals heterozygous for one gene. 2.The law of independent assortment describes the relationship between alleles of a single gene. 3.The law of segregation describes the manner in which genes on different chromosomes segregate. 4.Homologous chromosomes segregate into different gametes. Topic 1 - $300 Question Click to see answer

4. Topic 1 - $300 Answer Click to return to Jeopardy Board

From which parent did a male with red-green color blindness inherit the defective allele? 1.only the mother 2.only the father 3.the mother or the father, but not both 4.both the mother and the father Topic 1 - $400 Question Click to see answer

1. Topic 1 - $400 Answer Click to return to Jeopardy Board

What is the ratio when two different traits are crossed? What is this cross called? Topic 1 - $500 Question Click to see answer

9:3:3:1; Dihybrid Cross Topic 1 - $500 Answer Click to return to Jeopardy Board

Excluding sex chromosomes, what are all other chromosomes called? Topic 2 - $100 Question Click to see answer

Autosomes Topic 2 - $100 Answer Click to return to Jeopardy Board

What are heterozygous individuals who posses a recessive allele for a genetic disorder but does not express that disorder called? Topic 2 - $200 Question Click to see answer

Carriers Topic 2 - $200 Answer Click to return to Jeopardy Board

What is this pedigree an example of? Topic 2 - $300 Question Click to see answer

autosomal dominant trait Topic 2 - $300 Answer Click to return to Jeopardy Board

Keeping in mind that the allele for albinism is recessive, what are the chances that two heterozygotes will have a child with normal skin pigment? Topic 2 - $400 Question Click to see answer

¾ (75%) Topic 2 - $400 Answer Click to return to Jeopardy Board

A father has type AB blood and the mother has type A blood, which blood types can their children not have? Topic 2 - $500 Question Click to see answer

Type Type O Topic 2 - $500 Answer Click to return to Jeopardy Board

Topic 3 - $100 Answer Click to see answer What is sickle cell anemia?

A recessive disorder most common among those of African descent and is caused by substitution of a single amino acid in hemoglobin. Deformed red blood cells. Topic 3 - $100 Question Click to return to Jeopardy Board

Topic 3 - $200 Answer What is Tay-Sachs disease? Click to see answer

A genetic disorder in which non-functional enzyme fails to break down lipids in Brain cells. Topic 3 - $200 Question Click to return to Jeopardy Board

What is Turner’s syndrome? Topic 3 - $300 Answer Click to see answer

A disorder in which there are 45 chromosome due to a missing chromosome. --- Characteristics: small stature female, sterile female, webbed skin Topic 3 - $300 Question Click to return to Jeopardy Board

Explain how red color blindness is inherited. Why is it more common in males than females? Topic 3 - $400 Question Click to see answer

Red color blindness is controlled by the recessive allele in the x chromosome. For a female to be colorblind, she must inherit two recessive alleles whereas a male only need to inherit one recessive gene. Topic 3 - $400 Answer Click to return to Jeopardy Board

Name and describe the 3 mendelian pattern of inheritance. Topic 3 - $500 Question Click to see answer

1)Autosomal Dominant- Dominant inheritance occurs when an abnormal gene from one parent causes disease even though the matching gene from the other parent is normal. Autosomal Recessive- both matching genes must be abnormal to cause disease. 2)Sex-linked Recessive- Sex-linked diseases are passed down through families through one of the X or Y chromosomes. Topic 3 - $500 Answer Click to return to Jeopardy Board

Topic: Topic: Random FINAL Click to see Click to see question

If scientists wish to add a eukaryotic gene to a bacterium in order to get the bacterium to make the eukaryotic protein, they usually produce the DNA for this gene by a.copying the mRNA for the protein with reverse transcriptase b.exposing the bacteria to mutagens and then selecting for those that make the needed protein c.isolating the correct eukaryotic gene and then removing the introns from the DNA d.ligating the string of oligonucleotides isolated from eukaryotic DNA e.sequencing the amino acids in the protein and then constructing a piece of DNA to code for them Final Jeopardy Question Click to see answer

A. The scientists use mRNA because it does not have introns. They use reverse transcriptase to make complementary DNA or cDNA. The cDNA is then added to the plasmid and introduced to the bacteria. Final Jeopardy Answer Click to return to Jeopardy Board