Quiz Vocabulary Genetics and Concepts
  • 1. Gene that produces the phenotype
A) dominant
B) recessive
C) heredity
D) chromosome
  • 2. Gene that always "masks" the expression of a recessive trait
A) inheritance
B) dominant
C) heredity
D) recessive
  • 3. An inherited characteristic
A) expression
B) trait
C) base pair
D) syndrome
  • 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) heterozygous
B) diploid
C) homozygous
D) haploid
  • 6. Exchange of DNA between homologous chromosomes
A) mutation
B) crossing over
C) mitosis
D) mutagen
  • 7. Crossing over predominantly occurs during____
A) interphase
B) S1
C) mitosis
D) meiosis
  • 8. What is the function/purpose of Crossing Over?
A) all of these
B) genetic diversity
C) to create 2 daughter cells
D) to create mutations
  • 9. Down Syndrome is a ________ disorder
A) gamete
B) all of these
C) monosomy
D) trisomy
  • 10. Down Syndrome occurs on pair __
A) 21
B) 1
C) 23
D) 13
  • 11. A chromosomal disorder characterized by one less chromosome
A) monosomy
B) trisomy
C) Down Syndrome
D) cancer
  • 12. An organized "picture" of chromosome pairs
A) Karyotype
B) DNA
C) RNA
D) replication
  • 13. Egg and sperm cells are called __
A) replication
B) mutations
C) gametes
D) somatic cells
  • 14. This holds a pair of chromosomes together
A) DNA
B) centromere
C) telomere
D) cytokinesis
  • 15. 2 identical halves of a chromosome pairs in cell division
A) mutation
B) sister chromatids
C) mitosis
D) RNA
  • 16. Body cells like skin and muscle are called ___
A) haploid
B) gametes
C) somatic
D) cancer
  • 17. Which is NOT a factor that can cause mutations?
A) radiation
B) chemical exposure
C) lack of sleep
D) smoking
  • 18. A strand of DNA that carries genes
A) chromosome
B) homozygous
C) carcinogen
D) mutation
  • 19. Meiosis produces__
A) carcinogens
B) body cells
C) 4 daughter cells
D) 2 daughter 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) DNA
B) Golgi Bodies
C) ribosomes
D) cytoplasm
  • 22. When alleles symbolize or code for 2 different traits, they are called ___
A) all of these
B) homozygous
C) heterozygous
D) homologous
  • 23. When alleles symbolize or code for the same trait, the are called __
A) homozygous
B) mutations
C) heterozygous
D) carcinogens
  • 24. Male chromosomes are the letters
A) X
B) Y
C) XY
D) XX
  • 25. Female chromosomes are
A) Y
B) XX
C) YY
D) XY
  • 26. Basic unit of heredity
A) genes
B) chromosomes
C) ribosomes
D) DNA
  • 27. Alleles are ____
A) DNA strands
B) how a trait looks
C) letters for traits
D) RNA strands
  • 28. Mutations can be__
A) helpful
B) harmful
C) all of these
D) neutarl
  • 29. Genome
A) an organisms complete DNA sequence
B) a mutation
C) cancer
D) occur in mitochondria
  • 30. Gender of offspring can be found on what chromosome pairs?
A) 23
B) 21
C) 2
D) 1
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