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