Quiz Vocabulary Genetics and Concepts
  • 1. Gene that produces the phenotype
A) chromosome
B) heredity
C) dominant
D) recessive
  • 2. Gene that always "masks" the expression of a recessive trait
A) inheritance
B) heredity
C) recessive
D) dominant
  • 3. An inherited characteristic
A) expression
B) base pair
C) syndrome
D) trait
  • 4. These 2 are similar in length, function and gene positions
A) mutations
B) heterozygous chromosomes
C) homologous chromosomes
D) RNA strands
  • 5. Gametes with one set of chromosomes are considered to be __
A) diploid
B) heterozygous
C) homozygous
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) S1
B) meiosis
C) mitosis
D) interphase
  • 8. What is the function/purpose of Crossing Over?
A) to create 2 daughter cells
B) to create mutations
C) all of these
D) genetic diversity
  • 9. Down Syndrome is a ________ disorder
A) gamete
B) trisomy
C) monosomy
D) all of these
  • 10. Down Syndrome occurs on pair __
A) 23
B) 1
C) 13
D) 21
  • 11. A chromosomal disorder characterized by one less chromosome
A) monosomy
B) Down Syndrome
C) trisomy
D) cancer
  • 12. An organized "picture" of chromosome pairs
A) DNA
B) Karyotype
C) RNA
D) replication
  • 13. Egg and sperm cells are called __
A) somatic cells
B) mutations
C) replication
D) gametes
  • 14. This holds a pair of chromosomes together
A) centromere
B) DNA
C) telomere
D) cytokinesis
  • 15. 2 identical halves of a chromosome pairs in cell division
A) sister chromatids
B) RNA
C) mitosis
D) mutation
  • 16. Body cells like skin and muscle are called ___
A) gametes
B) somatic
C) cancer
D) haploid
  • 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) mutation
B) homozygous
C) chromosome
D) carcinogen
  • 19. Meiosis produces__
A) 2 daughter cells
B) body cells
C) 4 daughter cells
D) carcinogens
  • 20. Mitosis produces __
A) 2 identical daughter cells
B) 2 different daughter cells
C) 4 gametes
D) 4 daughter cells
  • 21. The material that carries genetic information in a cell
A) DNA
B) ribosomes
C) cytoplasm
D) Golgi Bodies
  • 22. When alleles symbolize or code for 2 different traits, they are called ___
A) heterozygous
B) all of these
C) homozygous
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) Y
B) X
C) XY
D) XX
  • 25. Female chromosomes are
A) XY
B) YY
C) XX
D) Y
  • 26. Basic unit of heredity
A) genes
B) chromosomes
C) ribosomes
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) neutarl
C) all of these
D) helpful
  • 29. Genome
A) occur in mitochondria
B) a mutation
C) cancer
D) an organisms complete DNA sequence
  • 30. Gender of offspring can be found on what chromosome pairs?
A) 2
B) 1
C) 21
D) 23
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