Science CH4 6th 20-21
  • 1. All _____ have DNA.
A) Chemical compounds
B) Human cells
C) Living organisms
D) Solid objects
  • 2. How is DNA similar to a fingerprint?
A) Both are fake
B) Both are found in the nucleus of every cell of the body
C) Both determine Physical traits such as height and eye color
D) Both are unique to each individual
  • 3. Which part of the term "deoxyribonucleic acid" indicates where DNA is located?
A) Acid
B) Ribo
C) Bonu
D) Nucleic
  • 4. There are ______of different kinds of proteins in the human body.
A) Gazillions
B) Trillions
C) Thousands
D) Billions
  • 5. How many chromosomes do humans have?
A) 23
B) None
C) 20,000
D) 46
  • 6. The function of ________is not entirely known.
A) Magic sword
B) Genes
C) Base pairs
D) Non-coding DNA
  • 7. Inherited traits are:
A) The Avengers
B) Passed on from parent to offspring
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) 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) White blood cells
B) Reproductive cells
C) Neurons
D) Skin cells
  • 10. A gene carries the__________for a trait.
A) Instructions
B) Protection
C) Materials
D) Magic wand
  • 11. The building blocks of DNA are like alphabet letters, because they:
A) Can be used in a variety of languages
B) Each have an uppercase and lowercase form
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) DNA
B) Chromosomes
C) Cells
D) Proteins
  • 13. Which of the following have you inherited completely from your parents? Choose the best answer.
A) Your talent
B) The shape of your blood cells
C) Your weight
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) Neither the short nor tall trait is dominant
B) They were green
C) The tall plant trait dominates the short plant trait
D) Both short and tall traits are dominant
  • 16. Which of the following organisms is most likely to reproduce asexually?
A) Mandalorians
B) Leopards
C) Bacteria
D) Storm troopers
  • 17. Sexual reproduction results in organisms with more:
A) Offsprings
B) Positive traits
C) Genetic variety
D) Chromosomes
  • 18. Which of the following helps a species adapt to a chamging environment?
A) None
B) Increasing genetic variation
C) Having fewer offspring
D) Having more offspring
  • 19. How do gametes differ from other cells in the body?
A) They don´t carry genes
B) They each contain instructions for one trait
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) 2
B) 23
C) 46
D) None
  • 21. Which of the following is true about chromosomes?
A) They are chunks of DNA
B) They carry one gene
C) They double every generation
D) They are identical in both parents
  • 22. Genes carry two sets of instructions for each trait in the form of:
A) DNA
B) Alleles
C) Gametes
D) Chromosomes
  • 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 diverse
B) Less evolved
C) Nothing
D) More complex
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