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