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