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