Quiz Vocabulary Genetics and Concepts
  • 1. Gene that produces the phenotype
A) recessive
B) dominant
C) heredity
D) chromosome
  • 2. Gene that always "masks" the expression of a recessive trait
A) dominant
B) heredity
C) inheritance
D) recessive
  • 3. An inherited characteristic
A) base pair
B) trait
C) syndrome
D) expression
  • 4. These 2 are similar in length, function and gene positions
A) homologous chromosomes
B) mutations
C) RNA strands
D) heterozygous chromosomes
  • 5. Gametes with one set of chromosomes are considered to be __
A) diploid
B) homozygous
C) haploid
D) heterozygous
  • 6. Exchange of DNA between homologous chromosomes
A) mutation
B) mitosis
C) mutagen
D) crossing over
  • 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 mutations
B) to create 2 daughter cells
C) genetic diversity
D) all of these
  • 9. Down Syndrome is a ________ disorder
A) gamete
B) monosomy
C) all of these
D) trisomy
  • 10. Down Syndrome occurs on pair __
A) 23
B) 21
C) 1
D) 13
  • 11. A chromosomal disorder characterized by one less chromosome
A) trisomy
B) monosomy
C) Down Syndrome
D) cancer
  • 12. An organized "picture" of chromosome pairs
A) replication
B) RNA
C) Karyotype
D) DNA
  • 13. Egg and sperm cells are called __
A) replication
B) gametes
C) somatic cells
D) mutations
  • 14. This holds a pair of chromosomes together
A) cytokinesis
B) telomere
C) centromere
D) DNA
  • 15. 2 identical halves of a chromosome pairs in cell division
A) mitosis
B) sister chromatids
C) mutation
D) RNA
  • 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) lack of sleep
C) smoking
D) chemical exposure
  • 18. A strand of DNA that carries genes
A) chromosome
B) homozygous
C) carcinogen
D) mutation
  • 19. Meiosis produces__
A) 2 daughter cells
B) carcinogens
C) 4 daughter cells
D) body cells
  • 20. Mitosis produces __
A) 2 different daughter cells
B) 4 daughter cells
C) 2 identical daughter cells
D) 4 gametes
  • 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) heterozygous
B) homologous
C) homozygous
D) all of these
  • 23. When alleles symbolize or code for the same trait, the are called __
A) heterozygous
B) carcinogens
C) homozygous
D) mutations
  • 24. Male chromosomes are the letters
A) Y
B) XX
C) XY
D) X
  • 25. Female chromosomes are
A) YY
B) XX
C) XY
D) Y
  • 26. Basic unit of heredity
A) genes
B) chromosomes
C) ribosomes
D) DNA
  • 27. Alleles are ____
A) letters for traits
B) how a trait looks
C) RNA strands
D) DNA strands
  • 28. Mutations can be__
A) all of these
B) helpful
C) harmful
D) neutarl
  • 29. Genome
A) cancer
B) occur in mitochondria
C) an organisms complete DNA sequence
D) a mutation
  • 30. Gender of offspring can be found on what chromosome pairs?
A) 21
B) 23
C) 2
D) 1
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