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