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Bio. U10 Yr. 1

QuestionAnswer
InHumans,TheABOBloodGroupsAreAnExampleOfInheritanceInvolvingMultipleAlleles.InAFamily,TheParentsHave blood group A and blood group B respectively. Their first child has blood group O. What is the probability that their next child will have blood group B? 25%
A couple have four children whose blood groups are A, B and AB. What is the likely combination of the parents’ genotypes? IAi and IBi
Thomas Hunt Morgan investigated in genetic crosses in fruit flies (Drosophila). Some of the ratios that he found did not correspond with expected Mendelian ratios. What was the cause? The genes in the genetic crosses were linked.
If a man with blood group O and a woman with blood group AB have children, which blood group(s) could the children have? A or B only
Males can inherit the recessive allele that causes red-green color blindness from their mother, not from their father. Which of the following genotypes would produce a color-blind male? XC Y only
When performing a chi-squared test on ratios of a dihybrid cross, what is true? NullHypothesis=NoSignificantDifferenceBetweenExpected&ObservedRatios,DegreesOfFreedom(df)CalculatedBySubtracting1FromTotal#OfPossiblePhenotypes,IfCriticalValueObtainedFromTableOfChiSquaredValuesIsGreaterThanCalculatedValue,NullHypothesisShouldBeAccepted
Recombinants of genes that are located on the same chromosome are formed by... Crossing-over between homologous chromosomes during Prophase i
It is possible for two parents to have children with each of the four ABO blood groups. What blood groups would the parents have? Mother is Type A; Father is Type B
What maximum number of different genotypes and phenotypes are possible among the children of a mother with blood type A and a father with blood type B? Genotypes = 4; Phenotypes = 4
What is a statement of Mendel's Law of Independent Assortment? Allele pairs for different genes separate independently during gamete formation
In guinea pigs black coat color is dominant to white. In a test cross between a black and a white guinea pig both black and white offspring were produced. What percentage of the offspring would be expected to be white? 50%
The ABO blood type groups in humans follows what are the patterns of inheritance? Multiple alleles & co-dominance
Human skin color shows continuous variation. What does this indicate about the pattern of inheritance of human skin color? It is polygenic
In peas, tall is dominant to dwarf. In a cross between a dwarf plant and a heterozygous tall plant what percentage of the offspring will be dwarf? 50%
InFruitFlyExperiment,GreyBody,NormalWinged(HomozygousDominant)FruitFliesWereMatedWBlackBody,ShortWinged(HomozygousRecessive)FruitFlies.F1DihybridFemalesThenUsedInTestCross.IfGenesAreAlwaysLinked&NoCrossingOver,WhatWouldBePredictedRatioInTheF2Generation? 3 : 1
Created by: user-1907392
 

 



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