7th Grade Science Test- Genetics
Parents normally pass certain traits to their offspring and these traits are as a result of inherited genes. The study of genetics is important as it gives us a fresh look at how to cure some genetic diseases or show on the possibility of getting them. This is a quiz about Mendel, his contributions, Punnett Squares, Probability, and Genetics. Give it a try and see how much you understand genetics as a seventh grader.
- 1.When Mendel crossed the pea plants the trait that seemed to disappear happened to reappear. During what generation did it reappear?
- 2.The passing of physical characteristics from parent to offspring is __________.
- A.
Genetics
- B.
Traits
- C.
Fertilization
- D.
Heredity
- 3.Mendel wondered why different pea plants had _________ ____________?
- A.
Different Genes
- B.
Pollen
- C.
Different Characteristics
- D.
Many parents
- 4.What is happening when pollen from one plant is put into another?
- A.
Cross Pollination
- B.
Brushing
- C.
Fertilization
- D.
None of the Above
- 5.If a Purebred Tall Plant and a Purebred short plant are crossed when will be the outcome of the F1 generation?
- A.
100% Purebred Short
- B.
75% Tall and 25% Short
- C.
100% Tall
- D.
100% Purebred Tall
- 6.A wrinkled seed shape is the Recessive Allele, what is the Dominant Allele?
- A.
Smooth
- B.
Round
- C.
Pinched
- D.
Yellow
- 7.When the Dominant Allele is Green Pod Color and the Recessive Allele is a Pinched Pod Shape is it possible for an organism to have both of the traits?
- A.
Yes
- B.
No
- C.
I don't know
- 8.When a capital letter is used, what kind of allele is being represented?
- A.
Recessive Allele
- B.
Codominance
- C.
Punnett Squares
- D.
Dominant Allele
- 9.After Mendel died scientists began to recognize the importance of his ideas. They called him a name. What was the name that they called him?
- A.
Father of Genes
- B.
Father of Heredity
- C.
Father of Genetics
- D.
Father of Traits
- 10.If a coin is tossed 10 times, what is the probability that it will land on heads? (answer is a percent)
- A.
50 times
- B.
5 times
- C.
50%
- D.
100%
- 11.When colored chips are pulled out of a bag AND NOT put back in, is the probability still independent?
- A.
Yes
- B.
No
- C.
I don't know
- 12.If the probability of something is 75% will the event really occur 75% of the time?
- A.
Yes
- B.
No
- C.
I don't know
- D.
It could but it does not all the time
- 13.A penny is tossed 6 times and has landed on heads each time. Knowing those results is the penny going to land on heads the next toss?
- A.
Yes
- B.
No
- C.
50% chance of heads and 50% chance of tails
- 14.If Tall is the dominant trait and short is the recessive trait what letter(s) do you represent a short plant with?
- A.
Ss
- B.
Ss
- C.
Tt
- D.
Tt
- 15.A Punnett Square shows all the possible combinations of what?
- A.
Genes
- B.
Alleles
- C.
Coin Tosses
- D.
Probability
- 16.If a pea plant has a gray seed coat color, is that the pea plants phenotype of genotype?
- A.
Phenotype
- B.
Genotype
- C.
Neither
- D.
Both
- 17.Black is the dominant color of bunny's fur, it can be expressed using what genotype combination?
- A.
Bb
- B.
BB
- C.
Bb
- D.
Just A and C
- E.
Just A and B
- 18.When an organism has two different alleles for a trait they are said to be ________________. (two possible answers)
- A.
Heterozygous
- B.
Homozygous
- C.
Hybrid
- D.
Purebred
- 19.If a heterozygous chicken has both black and white feathers, they have neither a dominant or recessive trait. What is having neither a dominant or recessive trait called?
- A.
A black and white chicken
- B.
A White chicken with black
- C.
Neither black or white feathers
- D.
Codominance
- 20.Mendel decided to cross pea plants with ____________ traits.
- 21.In pea plants, the dominant trait for Seed Color is Yellow. What is the Recessive trait?
- 22.Mendel's experiments demonstrated that parents traits to not always go to their _________.
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