Science CH4 6th 20-21
  • 1. All _____ have DNA.
A) Living organisms
B) Human cells
C) Chemical compounds
D) Solid objects
  • 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 fake
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) Trillions
B) Gazillions
C) Thousands
D) Billions
  • 5. How many chromosomes do humans have?
A) None
B) 46
C) 20,000
D) 23
  • 6. The function of ________is not entirely known.
A) Non-coding DNA
B) Genes
C) Magic sword
D) Base pairs
  • 7. Inherited traits are:
A) Passed on from parent to offspring
B) Mutants
C) The Avengers
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) Traits are inherited in separate units
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) Reproductive cells
C) Neurons
D) Skin cells
  • 10. A gene carries the__________for a trait.
A) Instructions
B) Materials
C) Protection
D) Magic wand
  • 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) Each have an uppercase and lowercase form
D) Can be used in a variety of languages
  • 12. Genes influence an organism´s traits by coding for:
A) Cells
B) Chromosomes
C) DNA
D) Proteins
  • 13. Which of the following have you inherited completely from your parents? Choose the best answer.
A) Your weight
B) Your talent
C) Your money
D) The shape of your blood cells
  • 14. What is heredity?
A) The passing of traditions from parents to their children
B) Another term for sexual reproduction
C) A type of sexual reproduction
D) The passing of traits from parents to offspring
  • 15. What did Gregor Mendel learn about his pea plants?
A) Neither the short nor tall trait is dominant
B) The tall plant trait dominates the short plant trait
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) Storm troopers
B) Bacteria
C) Leopards
D) Mandalorians
  • 17. Sexual reproduction results in organisms with more:
A) Positive traits
B) Offsprings
C) Chromosomes
D) Genetic variety
  • 18. Which of the following helps a species adapt to a chamging environment?
A) None
B) Having more offspring
C) Having fewer offspring
D) Increasing genetic variation
  • 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) None
B) 46
C) 23
D) 2
  • 21. Which of the following is true about chromosomes?
A) They double every generation
B) They are chunks of DNA
C) They are identical in both parents
D) They carry one gene
  • 22. Genes carry two sets of instructions for each trait in the form of:
A) Gametes
B) Alleles
C) DNA
D) Chromosomes
  • 23. Which of the following is true about evolution?
A) All of the answers
B) It requires survival and reproduction
C) It describes change over time
D) It is fueled by genetic variation
  • 24. Without sexual reproduction, life on Earth would likely be:
A) Less evolved
B) Nothing
C) Less diverse
D) More complex
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