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Science CH4 6th 20-21
Contributed by: Castro
  • 1. All _____ have DNA.
A) Human cells
B) Chemical compounds
C) Living organisms
D) Solid objects
  • 2. How is DNA similar to a fingerprint?
A) Both are fake
B) Both determine Physical traits such as height and eye color
C) Both are unique to each individual
D) Both are found in the nucleus of every cell of the body
  • 3. Which part of the term "deoxyribonucleic acid" indicates where DNA is located?
A) Nucleic
B) Acid
C) Ribo
D) Bonu
  • 4. There are ______of different kinds of proteins in the human body.
A) Trillions
B) Thousands
C) Billions
D) Gazillions
  • 5. How many chromosomes do humans have?
A) 46
B) None
C) 20,000
D) 23
  • 6. The function of ________is not entirely known.
A) Base pairs
B) Magic sword
C) Genes
D) Non-coding DNA
  • 7. Inherited traits are:
A) Mutants
B) The Avengers
C) Passed on from parent to offspring
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) Pea plants do not have genes
B) Traits are inherited in separate units
C) Traits are not inherited
D) Offspring inherit genes only from one parent
  • 9. Every cell in an organism has the same number of chromosomes, except:
A) Neurons
B) White blood cells
C) Skin cells
D) Reproductive cells
  • 10. A gene carries the__________for a trait.
A) Materials
B) Instructions
C) Magic wand
D) Protection
  • 11. The building blocks of DNA are like alphabet letters, because they:
A) Each have an uppercase and lowercase form
B) Are each associated with a particular sound
C) Spell out different instructions depending on theri order
D) Can be used in a variety of languages
  • 12. Genes influence an organism´s traits by coding for:
A) Cells
B) DNA
C) Proteins
D) Chromosomes
  • 13. Which of the following have you inherited completely from your parents? Choose the best answer.
A) Your talent
B) Your weight
C) The shape of your blood cells
D) Your money
  • 14. What is heredity?
A) The passing of traits from parents to offspring
B) Another term for sexual reproduction
C) A type of sexual reproduction
D) The passing of traditions from parents to their children
  • 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) Mandalorians
B) Storm troopers
C) Leopards
D) Bacteria
  • 17. Sexual reproduction results in organisms with more:
A) Chromosomes
B) Genetic variety
C) Offsprings
D) Positive traits
  • 18. Which of the following helps a species adapt to a chamging environment?
A) Having fewer offspring
B) Increasing genetic variation
C) None
D) Having more offspring
  • 19. How do gametes differ from other cells in the body?
A) They each contain instructions for one trait
B) They contain one copy of each chromosome
C) They don´t carry genes
D) They reproduce asexually
  • 20. In sexually reproducing organisms, how many gametes are needed for fertilization?
A) 23
B) None
C) 2
D) 46
  • 21. Which of the following is true about chromosomes?
A) They are identical in both parents
B) They are chunks of DNA
C) They double every generation
D) They carry one gene
  • 22. Genes carry two sets of instructions for each trait in the form of:
A) DNA
B) Chromosomes
C) Alleles
D) Gametes
  • 23. Which of the following is true about evolution?
A) All of the answers
B) It describes change over time
C) It is fueled by genetic variation
D) It requires survival and reproduction
  • 24. Without sexual reproduction, life on Earth would likely be:
A) Less diverse
B) Less evolved
C) More complex
D) Nothing
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