WorksheetsQUIZIZZ #7 Albinism/Mendelian Genetics & Punnett Squares
Total questions: 20
Worksheet time: 11mins
Plants have the pigment chlorophyll that gives plants their green color. Identify the pigment found in the skin of humans that also provide color.
Melanocytes
Melon
Melanin
Epidermis
Identify the statement that would is INCORRECT regarding Melanin & skin color:
Those with more Melanin have darker skin.
Certain ethnicities have darker skin.
People with less Melanin are less likely to have skin cancer.
Protection from UV rays are more prominent in those with less Melanin.
Identify the reason(s) for cells to produce Melanin:
Hair, skin & eye color is a result on the amount of Melanin in humans & animals.
Melanocytes in the body produce Melanin to protect the skin from sun damage.
Both are correct
None are correct
Identify the correct alleles & genotype for a person who exhibits ALBINISM.
AA
Aa
aa
None are correct
Identify the correct alleles and genotype for a person who has the ability to pass the ALBINISM gene to their offspring but DOES NOT exhibit the phenotypic trait & is considered a CARRIER of the trait.
AA
Aa
aa
None are correct
Identify the correct alleles and genotype for a person who DOES NOT exhibit the phenotypic trait & is considered a NON-CARRIER normal individual without the genetic trait.
AA
Aa
aa
None are correct
What is the probability of an albino child if both parents are heterozygous for the trait?
25%
50%
75%
100%
Identify the genotypes of the parents if only 25% of the offspring are albino.
AA & AA
AA & aa
AA & Aa
Aa & Aa
Identify the correct genotypes for the parents in the cross shown.
BB & Bb
Brown & green
BB & bb
Brown & blue
Which eye expression is DOMINANT?
Brown
Blue
Both
None
Which eye expression has to be homozygous recessive to be expressed?
Brown
Blue
Both
None
Identify the CORRECT parent genotypes that would result in blue eye offspring
BB & Bb
BB & bb
Bb & Bb
None
Is it possible that an offspring with blue eyes have parents with brown eyes? Identify the statement that is would support this statement.
Both parents could be heterozygous for blue eyes
Since blue eyes is recessive & Brown eyes are dominant they would not express phenotypic blue eyes
Both are correct
None are correct
Which probability model would show probability in offspring for 1 trait?
Monohybrid Cross
Dihybrid Cross
Both
None
Which probability model would show probability in offspring for 2 traits?
Monohybrid Cross
Dihybrid Cross
Both
None
Which Mendelian Law refers to the alleles of each parent separating during the formation of gametes (sperm & eggs) of Meiosis:
Law of Segregation
Law of Independent Assortment
Which Mendelian Law refers to the inheritance of traits independently (hair color, eye color, skin color), as represented by Dihybrid Crosses.
Law of Segregation
Law of Independent Assortment
Is it possible for two people that are homozygous with Albinism to have a child without the trait? Identify the correct statement.
Yes, since Albinism skips a generation.
No, both parents will pass on the recessive trait to ALL their offspring.
Maybe, as long as they never all never go in the sun.
None are correct
Based on the chart on Blood Types which Blood Type is Homozygous recessive:
A
B
AB
O
Based on the chart on Blood Types which Blood Type is Heterozygous:
A
B
AB
O
