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