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