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