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Quiz Vocabulary Genetics and Concepts
Contributed by: LaPrad
  • 1. Gene that produces the phenotype
A) heredity
B) recessive
C) chromosome
D) dominant
  • 2. Gene that always "masks" the expression of a recessive trait
A) recessive
B) dominant
C) heredity
D) inheritance
  • 3. An inherited characteristic
A) expression
B) trait
C) base pair
D) syndrome
  • 4. These 2 are similar in length, function and gene positions
A) RNA strands
B) mutations
C) homologous chromosomes
D) heterozygous chromosomes
  • 5. Gametes with one set of chromosomes are considered to be __
A) haploid
B) heterozygous
C) homozygous
D) diploid
  • 6. Exchange of DNA between homologous chromosomes
A) mutation
B) crossing over
C) mutagen
D) mitosis
  • 7. Crossing over predominantly occurs during____
A) meiosis
B) mitosis
C) interphase
D) S1
  • 8. What is the function/purpose of Crossing Over?
A) all of these
B) to create 2 daughter cells
C) genetic diversity
D) to create mutations
  • 9. Down Syndrome is a ________ disorder
A) all of these
B) gamete
C) trisomy
D) monosomy
  • 10. Down Syndrome occurs on pair __
A) 13
B) 1
C) 23
D) 21
  • 11. A chromosomal disorder characterized by one less chromosome
A) monosomy
B) trisomy
C) Down Syndrome
D) cancer
  • 12. An organized "picture" of chromosome pairs
A) DNA
B) replication
C) Karyotype
D) RNA
  • 13. Egg and sperm cells are called __
A) replication
B) mutations
C) gametes
D) somatic cells
  • 14. This holds a pair of chromosomes together
A) telomere
B) cytokinesis
C) DNA
D) centromere
  • 15. 2 identical halves of a chromosome pairs in cell division
A) RNA
B) mutation
C) mitosis
D) sister chromatids
  • 16. Body cells like skin and muscle are called ___
A) somatic
B) haploid
C) gametes
D) cancer
  • 17. Which is NOT a factor that can cause mutations?
A) radiation
B) smoking
C) lack of sleep
D) chemical exposure
  • 18. A strand of DNA that carries genes
A) carcinogen
B) mutation
C) homozygous
D) chromosome
  • 19. Meiosis produces__
A) body cells
B) 2 daughter cells
C) 4 daughter cells
D) carcinogens
  • 20. Mitosis produces __
A) 2 different daughter cells
B) 4 gametes
C) 4 daughter cells
D) 2 identical daughter cells
  • 21. The material that carries genetic information in a cell
A) DNA
B) Golgi Bodies
C) ribosomes
D) cytoplasm
  • 22. When alleles symbolize or code for 2 different traits, they are called ___
A) homozygous
B) all of these
C) heterozygous
D) homologous
  • 23. When alleles symbolize or code for the same trait, the are called __
A) mutations
B) carcinogens
C) homozygous
D) heterozygous
  • 24. Male chromosomes are the letters
A) XX
B) X
C) XY
D) Y
  • 25. Female chromosomes are
A) Y
B) XY
C) YY
D) XX
  • 26. Basic unit of heredity
A) DNA
B) chromosomes
C) genes
D) ribosomes
  • 27. Alleles are ____
A) letters for traits
B) RNA strands
C) DNA strands
D) how a trait looks
  • 28. Mutations can be__
A) all of these
B) neutarl
C) harmful
D) helpful
  • 29. Genome
A) occur in mitochondria
B) an organisms complete DNA sequence
C) a mutation
D) cancer
  • 30. Gender of offspring can be found on what chromosome pairs?
A) 21
B) 23
C) 2
D) 1
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