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Science CH4 6th 20-21
Contributed by: Castro
  • 1. All _____ have DNA.
A) Living organisms
B) Solid objects
C) Human cells
D) Chemical compounds
  • 2. How is DNA similar to a fingerprint?
A) Both determine Physical traits such as height and eye color
B) Both are found in the nucleus of every cell of the body
C) Both are unique to each individual
D) Both are fake
  • 3. Which part of the term "deoxyribonucleic acid" indicates where DNA is located?
A) Nucleic
B) Acid
C) Bonu
D) Ribo
  • 4. There are ______of different kinds of proteins in the human body.
A) Thousands
B) Billions
C) Gazillions
D) Trillions
  • 5. How many chromosomes do humans have?
A) None
B) 20,000
C) 23
D) 46
  • 6. The function of ________is not entirely known.
A) Non-coding DNA
B) Magic sword
C) Base pairs
D) Genes
  • 7. Inherited traits are:
A) Passed on from parent to offspring
B) The Avengers
C) Mutants
D) Dependent on diet
  • 8. Gregor Mendel observed that pea plant traits did not blend in their offspring. This led him to conclude that:
A) Offspring inherit genes only from one parent
B) Traits are inherited in separate units
C) Pea plants do not have genes
D) Traits are not inherited
  • 9. Every cell in an organism has the same number of chromosomes, except:
A) Skin cells
B) Neurons
C) Reproductive cells
D) White blood cells
  • 10. A gene carries the__________for a trait.
A) Materials
B) Instructions
C) Protection
D) Magic wand
  • 11. The building blocks of DNA are like alphabet letters, because they:
A) Each have an uppercase and lowercase form
B) Can be used in a variety of languages
C) Spell out different instructions depending on theri order
D) Are each associated with a particular sound
  • 12. Genes influence an organism´s traits by coding for:
A) Proteins
B) Chromosomes
C) Cells
D) DNA
  • 13. Which of the following have you inherited completely from your parents? Choose the best answer.
A) Your money
B) Your talent
C) Your weight
D) The shape of your blood cells
  • 14. What is heredity?
A) A type of sexual reproduction
B) The passing of traditions from parents to their children
C) Another term for sexual reproduction
D) The passing of traits from parents to offspring
  • 15. What did Gregor Mendel learn about his pea plants?
A) The tall plant trait dominates the short plant trait
B) Neither the short nor tall trait is dominant
C) They were green
D) Both short and tall traits are dominant
  • 16. Which of the following organisms is most likely to reproduce asexually?
A) Bacteria
B) Leopards
C) Mandalorians
D) Storm troopers
  • 17. Sexual reproduction results in organisms with more:
A) Chromosomes
B) Genetic variety
C) Positive traits
D) Offsprings
  • 18. Which of the following helps a species adapt to a chamging environment?
A) Having more offspring
B) Increasing genetic variation
C) None
D) Having fewer offspring
  • 19. How do gametes differ from other cells in the body?
A) They don´t carry genes
B) They contain one copy of each chromosome
C) They reproduce asexually
D) They each contain instructions for one trait
  • 20. In sexually reproducing organisms, how many gametes are needed for fertilization?
A) 46
B) 23
C) None
D) 2
  • 21. Which of the following is true about chromosomes?
A) They carry one gene
B) They are identical in both parents
C) They are chunks of DNA
D) They double every generation
  • 22. Genes carry two sets of instructions for each trait in the form of:
A) Chromosomes
B) Alleles
C) DNA
D) Gametes
  • 23. Which of the following is true about evolution?
A) All of the answers
B) It requires survival and reproduction
C) It is fueled by genetic variation
D) It describes change over time
  • 24. Without sexual reproduction, life on Earth would likely be:
A) More complex
B) Less diverse
C) Nothing
D) Less evolved
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