EBK INQUIRY INTO LIFE: RELEVANCY UPDATE
15th Edition
ISBN: 9781260178012
Author: Mader
Publisher: MCGRAW HILL BOOK COMPANY
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Chapter 24, Problem S23.4BYB
Section 23.4 how does a Punnett square help predict the genotype and
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Given a cross between
AabbCcDdEeFFGgHh x AaBbCcDdEEffggHH,
a) how many possible gametes can the first individual produce?
b) what proportion of the offspring will phenotypically resemble the first parent?
c) what proportion of the offspring will genotypically resemble the second parent?
d) how many phenotypes can be expected from the cross?
What is a genetic cross?
A) what are the genotypes for EB27 and EB67?
B) what is the relationship between the three alleles (B,br, y)? Show evidence using the pedigree
Chapter 24 Solutions
EBK INQUIRY INTO LIFE: RELEVANCY UPDATE
Ch. 24.1 - Prob. 1LOCh. 24.1 - Prob. 2LOCh. 24.1 - Prob. 1CYPCh. 24.1 - Prob. 2CYPCh. 24.1 - Prob. 1ACh. 24.1 - Prob. 2ACh. 24.2 - Prob. 1LOCh. 24.2 - Prob. 2LOCh. 24.2 - Prob. 3LOCh. 24.2 - Prob. 1QTC
Ch. 24.2 - Prob. 2QTCCh. 24.2 - Prob. 3QTCCh. 24.2 - Prob. 1CYPCh. 24.2 - Prob. 2CYPCh. 24.2 - Prob. 3CYPCh. 24.2 - Prob. 3ACh. 24.2 - Prob. 4ACh. 24.3 - Describe how chromosome number disorder arise?Ch. 24.3 - Prob. 2LOCh. 24.3 - Prob. 1CYPCh. 24.3 - Prob. 2CYPCh. 24.3 - Prob. 5ACh. 24.3 - Prob. 6ACh. 24.3 - Prob. 7ACh. 24.3 - Prob. 8ACh. 24.3 - Prob. 9ACh. 24.4 - Prob. 1LOCh. 24.4 - 2. Summarize the disorder caused by changes in...Ch. 24.4 - Prob. 1CYPCh. 24.4 - Explain how it is possible for a person with a...Ch. 24.4 - Prob. 10ACh. 24.4 - Prob. 11ACh. 24.4 - Prob. 12ACh. 24.4 - Prob. 13ACh. 24 - Prob. S5.4BYBCh. 24 - Prob. S23.1BYBCh. 24 - Section 23.4 how does a Punnett square help...Ch. 24 - Prob. 1CSCh. 24 - What is the genetic basis that causes the symptoms...Ch. 24 - Prob. 3CSCh. 24 - Prob. 1TCCh. 24 - Prob. 2TCCh. 24 - Prob. 3TCCh. 24 - Prob. 4TC
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- in three points mapping one parent has the A+C/+b+ genotype that was crossed to a homozygous recessive second parent. a)what is the genotype of this second parent? b)what are the genotypes of the double cross over offspring?arrow_forwardWhat is the probability of producing a child that will phenotypically resemble either one (one OR the other) of the two parents in the following crosses? a) Aa bb cc dd X AA BB CC DD b) Aa Bb Cc Dd X Aa Bb Cc Dd c) Aa bb cc dd X aa bb cc dd Make sure to show your work in details.arrow_forward3) AA AA Consider the genetic cross for absent-mindedness, which is a dominant trait. All of the offspring from this cross will be absent-minded. If two parents that are absent-minded have offspring that are not, what MUST be the genotypes of the parents? A) aa X aa B) Aa X Aa Aa X aa D) Aa X AA In sexual reproduction, offspring are genetically different from the parents. This is becausearrow_forward
- The genotype of EB27 and EB67 are unknown. Based on pedigree, what are the most likely genotype of each individual?arrow_forwardTwo pure-breeding mutant plants produce white flowers. When they are crossed, all of the progeny have wild-type purple flowers. What does this genetic complementation tell you? A) The genes are part of two distinct biosynthetic pathways. B) The two lines exhibit different mutations in the same gene. C) More than one gene is involved in determining the phenotype. D) The allele is pleiotropic. E) The allele exhibits incomplete dominance.arrow_forwardDuchenne Muscular Dystrophy (DMD) is a sex- linked, recessive disease in which a mutation in the gene for dystrophin results in muscle cell degeneration. A normal man marries a woman who is a carrier for DMD. a) What are the parent genotypes? b) What are the four possible offspring genotypes from this cross? HINT - do a Punnett Square to figure this out! c) If they have four sons, how many of them will have DMD? ( d) If they have eight children, how many will be carriers of DMD? BONUS (+1): Why are males more often affected by sex-linked disorders than females?arrow_forward
- . Which of the following terms is used to describe the offspring of a cross of two true-breeding parents that differ in one or more traits? A) Hybrid B) Pure line C) Homozygous D) Reciprocalarrow_forward1) What is the difference between a monohybrid cross and a dihybrid cross? 2) What does it mean to have a sex-linked characteristic?arrow_forwardCross 1: Purple Stem (P1) x Brown Stem (P2) = F1 Generation (all purple stem plants). Cross 2: F1 x F1 = F2 Generation (295 purple stem plants and 102 brown stem plants). a) What is the phenotype ratio of the F2 generation? b) What is the geneotype ratio of the F2 generation? c) Which trait is dominant?arrow_forward
- Suppose that red flower color (RR or Rr) is dominant to white flower color (rr) in a petunia. A friend has a petunia plant with red flowers and wants to determine whether the plant is RR or Rr. A) What cross could you perform to help your friend determine the genotype of his petunia plant? B) How will this cross help you determine the genotype of your friend's red- flowered petunia? That is, how will the results from this cross differ if the red-flowered petunia is RR versus Rr?arrow_forwardFor an X-linked recessive disease, if an affected male is crossed with an unaffected female who is homozygous for the wild-type allele at the disease gene, then the percentage of male offspring that will be unaffected is: a) 0% b) 50% c) 100% d) 25% e) 33%arrow_forwardThe following two genotypes are crossed: Aa Bb Cc dd Ee x Aa bb Cc Dd Ee. What will the proportion of the following genotypes be among the progeny of this cross? a) AaBbCcDdEe b) AabbCcddee c) aabbccddee d) AABBCCDDEEarrow_forward
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