Genetics & Biotechnology: Hardy-Weinberg Theorem
40 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the sum of the frequencies of the two alleles in a Hardy-Weinberg population?

  • 2pq
  • p + q (correct)
  • p² + q²
  • p - q

What is the frequency of the Aa genotype in a Hardy-Weinberg population?

  • p²
  • pq
  • 2pq (correct)
  • q²

What is the pattern of inheritance of cystic fibrosis?

  • X-linked recessive
  • Autosomal recessive (correct)
  • Mitochondrial
  • Autosomal dominant

What is the frequency of the AA genotype in a Hardy-Weinberg population?

<p>p² (C)</p> Signup and view all the answers

What is the incidence of cystic fibrosis in people of Irish ethnicity?

<p>1 in 1,600 (A)</p> Signup and view all the answers

What is the condition for a population to be in Hardy-Weinberg Equilibrium at a genetic locus?

<p>Frequency of AA homozygotes = p2, frequency of Aa heterozygotes = 2pq, and frequency of aa homozygotes = q2 (C)</p> Signup and view all the answers

If the frequency of the mutated CFTR allele is 0.3, what is the frequency of the normal CF allele?

<p>0.7 (C)</p> Signup and view all the answers

What is the definition of evolution from a population genetics perspective?

<p>A generation-to-generation change in a population's allele or genotype frequencies over time (C)</p> Signup and view all the answers

What is the implication of a population not being in Hardy-Weinberg Equilibrium at a genetic locus?

<p>Microevolution is occurring at that locus (B)</p> Signup and view all the answers

What is the purpose of estimating the frequency of heterozygous carriers in a population?

<p>To determine the incidence of an autosomal recessive disease (D)</p> Signup and view all the answers

What is the expected outcome of a population with a specific allele that confers resistance to a disease, over many generations?

<p>The allele will become fixed, with a frequency of 1.0. (A)</p> Signup and view all the answers

What is the primary mechanism by which genetic variation is preserved in a population, despite the tendency of natural selection to eliminate it?

<p>Balancing selection and diploidy (A)</p> Signup and view all the answers

What is the significance of the Fy0 allele in African populations, where malaria is prevalent?

<p>It confers resistance to malaria, and has a high frequency in the population. (B)</p> Signup and view all the answers

What is the expected outcome of a population that is subject to balancing selection, over many generations?

<p>The population will exhibit a high degree of genetic variation. (B)</p> Signup and view all the answers

What is the primary function of the Duffy gene in humans?

<p>It encodes a protein that confers resistance to malaria. (B)</p> Signup and view all the answers

What is the consequence of inbreeding on the frequency of heterozygotes over time?

<p>The frequency of heterozygotes decreases (D)</p> Signup and view all the answers

Which of the following is NOT a condition required for Hardy-Weinberg Equilibrium?

<p>Genetic drift (B)</p> Signup and view all the answers

What is the expected frequency of Aa individuals in Generation 1, given p = 0.5 and q = 0.5?

<p>0.5 (B)</p> Signup and view all the answers

What is the consequence of non-random mating on the gene pool?

<p>It decreases genetic variation (B)</p> Signup and view all the answers

Which of the following is a consequence of mutation on the gene pool?

<p>It increases genetic variation (D)</p> Signup and view all the answers

What is the reason for the higher frequency of the RP allele in Tristan da Cunha compared to Britain?

<p>Founder effect (A)</p> Signup and view all the answers

What is the result of gene flow between two populations with different allele frequencies?

<p>Decreased genetic differences between the populations (C)</p> Signup and view all the answers

What is the condition required for Hardy-Weinberg Equilibrium to be maintained?

<p>No gene flow (A)</p> Signup and view all the answers

What is the effect of inbreeding in a population?

<p>Decreased genetic variation (D)</p> Signup and view all the answers

What is the result of genetic drift in a small population?

<p>Decreased genetic variation (A)</p> Signup and view all the answers

What is the primary mechanism by which alleles with negative effects can persist in a population?

<p>Propagation via heterozygous genotypes (C)</p> Signup and view all the answers

In the context of sickle-cell anaemia, what is the advantage of being heterozygous for the HbS allele?

<p>Heterozygote advantage against malaria (A)</p> Signup and view all the answers

What is the assumption required for the Hardy-Weinberg theorem to hold true?

<p>Random mating among individuals (B)</p> Signup and view all the answers

What is the effect of inbreeding on the frequency of recessive alleles?

<p>Increased frequency of recessive alleles (C)</p> Signup and view all the answers

What is the consequence of a missense mutation in the β-globin gene DNA sequence?

<p>Production of a sickle-shaped protein (C)</p> Signup and view all the answers

What is the likely reason for the lack of genetic variation in the Cheetah population?

<p>Bottleneck effect due to climate change (D)</p> Signup and view all the answers

What is the term for the phenomenon where a few individuals colonize a new habitat and establish a new population?

<p>Founder Effect (D)</p> Signup and view all the answers

What is the term for the genetic locus associated with disease susceptibility in the cheetah population?

<p>MHC (B)</p> Signup and view all the answers

What is the frequency of the allele associated with Retinitis Pigmentosa in the Tristan da Cunha population?

<p>0.13 (C)</p> Signup and view all the answers

What is the name of the disease caused by mutations in the rhodopsin gene (RHO) on HSA3?

<p>Retinitis Pigmentosa (A)</p> Signup and view all the answers

What is the frequency of Retinitis Pigmentosa in the British population?

<p>1/4,000 (C)</p> Signup and view all the answers

What is the likely reason for the high incidence of Retinitis Pigmentosa on Tristan da Cunha?

<p>High frequency of the allele in the founding population (B)</p> Signup and view all the answers

What is the name of the genetic phenomenon that occurs when a population undergoes a severe reduction in size?

<p>Bottleneck Effect (D)</p> Signup and view all the answers

What is the likely effect of the Bottleneck Effect on a population's genetic variation?

<p>Decreased genetic variation (C)</p> Signup and view all the answers

What is the term for the study of the inheritance of traits in populations?

<p>Population Genetics (B)</p> Signup and view all the answers

More Like This

Population Genetics: Hardy-Weinberg Equilibrium
15 questions
CR Biology A M5L4
30 questions

CR Biology A M5L4

CarefreeMeerkat avatar
CarefreeMeerkat
Hardy-Weinberg Theorem Quiz
45 questions

Hardy-Weinberg Theorem Quiz

AppreciatedDesert2023 avatar
AppreciatedDesert2023
Use Quizgecko on...
Browser
Browser