Topic 3 Genetics Test

Descrição

Covers 3.1-Genes, 3.2-Chromosomes, and 3.3- Meiosis
Jordyn Davis
Quiz por Jordyn Davis, atualizado more than 1 year ago
Jordyn Davis
Criado por Jordyn Davis mais de 3 anos atrás
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Resumo de Recurso

Questão 1

Questão
a [blank_start]gene[blank_end] is a heritable factor that consists of the length of DNA and influences a specific characteristic
Responda
  • gene
  • locus
  • allele

Questão 2

Questão
the [blank_start]locus[blank_end] occupies a specific position on the [blank_start]chromosome[blank_end]
Responda
  • locus
  • chromosome

Questão 3

Questão
[blank_start]alleles[blank_end] are different forms of the same gene that occupy the same locus
Responda
  • alleles
  • loci
  • mutations

Questão 4

Questão
alleles differ from only one or a few bases
Responda
  • True
  • False

Questão 5

Questão
what are single nucleotide polymorphisms?
Responda
  • positions in a gene where there is only one base
  • positions in a gene where more than one bases are present
  • a specific position on the chromosome
  • different forms of the same gene that occupy the same locus

Questão 6

Questão
[blank_start]mutations[blank_end] are random changes to the base sequence of DNA
Responda
  • mutations

Questão 7

Questão
what is an example of a mutation?
Responda
  • sickle cell anemia
  • malaria
  • Klinefelter's disease
  • Turner's disease

Questão 8

Questão
[blank_start]sickle cell anemia[blank_end] is caused by a mutation in the [blank_start]alpha-globin[blank_end] polypeptide in [blank_start]hemoglobin[blank_end]
Responda
  • sickle cell anemia
  • alpha-globin
  • hemoglobin

Questão 9

Questão
what happens to the red blood cells once they become sickle cells?
Responda
  • they change shape, become trapped in the capillaries, and reduce blood flow
  • the change shape, become trapped in the arteries, and reduce blood pressure
  • they are heritable factors that consist of the length of DNA and influence a specific characteristic
  • they are specific positions on a chromosome

Questão 10

Questão
a [blank_start]genome[blank_end] is the entire base sequence of each of the DNA molecules in an organism
Responda
  • mutation
  • gene
  • genome

Questão 11

Questão
where is the genome located in bacteria/prokaryotes?
Responda
  • in nuclear chromosomes plus DNA in mitochondria and chloroplasts
  • in circular chromosomes plus and plasmids present
  • in nuclear chromosomes plus DNA in mitochondria
  • in circular chromosomes plus DNA in mitochondria and alleles

Questão 12

Questão
check off the structural and genetic characteristics of a prokaryote:
Responda
  • double copy of each gene
  • single copy of each gene
  • have plasmids
  • has zero plasmids
  • has extra DNA molecules that are useful, but not necessary

Questão 13

Questão
check of the structural and genetic characteristics of eukaryotes:
Responda
  • has both dna and proteins
  • has both dna and genomes
  • dna is single and long and wrapped around histones

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