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