Science CH4 6th 20-21
  • 1. All _____ have DNA.
A) Solid objects
B) Chemical compounds
C) Living organisms
D) Human cells
  • 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 found in the nucleus of every cell of the body
D) Both are unique to each individual
  • 3. Which part of the term "deoxyribonucleic acid" indicates where DNA is located?
A) Acid
B) Bonu
C) Ribo
D) Nucleic
  • 4. There are ______of different kinds of proteins in the human body.
A) Billions
B) Gazillions
C) Thousands
D) Trillions
  • 5. How many chromosomes do humans have?
A) 23
B) 20,000
C) 46
D) None
  • 6. The function of ________is not entirely known.
A) Magic sword
B) Non-coding DNA
C) Base pairs
D) Genes
  • 7. Inherited traits are:
A) The Avengers
B) Mutants
C) Dependent on diet
D) Passed on from parent to offspring
  • 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) White blood cells
B) Skin cells
C) Reproductive cells
D) Neurons
  • 10. A gene carries the__________for a trait.
A) Instructions
B) Materials
C) Magic wand
D) Protection
  • 11. The building blocks of DNA are like alphabet letters, because they:
A) Spell out different instructions depending on theri order
B) Are each associated with a particular sound
C) Can be used in a variety of languages
D) Each have an uppercase and lowercase form
  • 12. Genes influence an organism´s traits by coding for:
A) Proteins
B) Cells
C) Chromosomes
D) DNA
  • 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) A type of sexual reproduction
C) The passing of traditions from parents to their children
D) Another term for sexual reproduction
  • 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) Storm troopers
B) Bacteria
C) Mandalorians
D) Leopards
  • 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 fewer offspring
B) None
C) Increasing genetic variation
D) Having more offspring
  • 19. How do gametes differ from other cells in the body?
A) They contain one copy of each chromosome
B) They don´t carry genes
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) 2
B) 23
C) 46
D) None
  • 21. Which of the following is true about chromosomes?
A) They double every generation
B) They are chunks of DNA
C) They carry one gene
D) They are identical in both parents
  • 22. Genes carry two sets of instructions for each trait in the form of:
A) Alleles
B) Chromosomes
C) Gametes
D) DNA
  • 23. Which of the following is true about evolution?
A) All of the answers
B) It describes change over time
C) It requires survival and reproduction
D) It is fueled by genetic variation
  • 24. Without sexual reproduction, life on Earth would likely be:
A) More complex
B) Less evolved
C) Less diverse
D) Nothing
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