Test Your Genetics Knowledge Quiz

Huntington's disease is a rare, inherited disease that causes the progressive breakdown (degeneration) of nerve cells in the brain .Huntington's disease is an autosomal dominant genetic disorder. Huntington's disease has a broad impact on a person's functional abilities and usually results in movement, thinking (cognitive) and psychiatric disorders. Huntington's disease has a broad impact on a person's functional abilities and usually results in movement, thinking (cognitive) and psychiatric disorders. Huntington's disease symptoms can develop at any time, but they often first appear when people are in their 30s or 40s. If the condition develops before age 20, it's called juvenile Huntington's disease. When Huntington's develops early, symptoms are somewhat different and the disease may progress faster. The probability percentage of the disease inheritance in the offspring knowing that one partner carries the disease is:

• 50%

• 100%

• 50 % to 100%

• 75% to 100 %

Cystic fibrosis is an example of a recessive disease. Cystic fibrosis is a hereditary disease that affects the lungs and digestive system. The body produces thick and sticky mucus that can clog the lungs and obstruct the pancreas. Cystic fibrosis (CF) can be life-threatening, and people with the condition tend to have a shorter-than-normal life span. Ahmed was a disease carrier and his wife Mona was disease - free , without any genetics examinations carried a doctor confirmed that their offspring will be healthy and free from that disease? In your opinion the doctor was:

• Absolutely true

• Absolutely wrong

• Not true nor wrong 

Nader has black curly hair ... he married Nesreen with light straight hair. The percentage of having a female baby with the same characters as her mother is:

• 56.25%

• 6.25%

• 12.5%

• 3.12%

• 9.375%

• 50%

Abdullah and Shaimaa were married . Abdullah has brown eyes while Shaimaa has blue eyes , Shaimaa had a male baby with blue eyes . In the above case we can confirm the both genotypes of Abdullah and Shaimaa?

• Yes we can

• No we can

• Yes we can but with probability

• Option 4

If a male partner with face dimples and pure skin married a female partner that has face freckles but has no dimples , their offspring number of phenotypes probabilities:

• 1

• 2

• 3

• 4

All of the following may carry variable number of chromosomes except: (choose two)

• Liver cells

• Brain cells

• Muscle cells

• Sperm cells

• White blood cells

• Skin cells

Klinefelter syndrome is an abnormal male sex disorder , choose the correct karyotype representing the case:

• Option 1

• Option 2

• Option 3

• Option 4

According to Mendel Second law of characters inheritance , all the offspring (first and second) genotypes can be determined from their phenotypes

• True

• False

Within each chromosome, there are two copies of each  .............. (complete)