BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
3rd Edition
ISBN: 9781260670929
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 10, Problem 7WIO
Explain how each of the following appears to disrupt Mendelian ratios; incomplete dominance, codominance, pleiotropy. In each case what is happening at the level of the protein?
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Consider the following cross examining four gene in two parental line:
Parent 1: A/a; B/B; D/d; E/e
Parent 2: A/a; B/b; d/d; e/e
Assuming independent assortment for the four genes, what fraction of progeny will be
phenotypically identical to either parent 1 or parent 2? (Hint: first figure out the
fraction of progeny that resembles parent 1 and parent 2 separately, then get the
overall fraction.)
9/16
1/16
3/4
3/8
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Use a branch diagram to determine all the phenotypes and corresponding ratios that are expected to occur among the offspring of the following Mendelian cross; d d E e F f X D D e e Ff. Assume incomplete dominance for D, E and F. Hint: are phenotypes and genotypes the same or different in this case?
On the basis of Mendel’s observations (i.e. Mendelian patterns), predict the results from the following crosses with peas. Show the results in terms of genotypes, phenotypes, and their proportions in the offspring.
The progeny of a tall (dominant and homozygous) variety crossed with a dwarf variety.
The progeny of (a) self-fertilized.
The progeny from (a) crossed with the original tall parent.
The progeny of (a) crossed with the original dwarf parent.
Chapter 10 Solutions
BIOLOGY:THE ESSENTIALS (LL) W/CONNECT
Ch. 10.1 - How are chromosomes, DNA, genes, and alleles...Ch. 10.1 - Prob. 2MCCh. 10.2 - Why did Gregor Mendel choose pea plants as his...Ch. 10.2 - Distinguish between dominant and recessive;...Ch. 10.3 - Prob. 1MCCh. 10.3 - How are Punnett squares helpful in following the...Ch. 10.3 - Prob. 3MCCh. 10.3 - Prob. 4MCCh. 10.4 - What is a dihybrid cross, and what is the...Ch. 10.4 - Prob. 2MC
Ch. 10.4 - Prob. 3MCCh. 10.5 - How do the patterns of inheritance differ for...Ch. 10.5 - What is the difference between recombinant and...Ch. 10.5 - Prob. 3MCCh. 10.6 - Prob. 1MCCh. 10.6 - What is pleiotropy?Ch. 10.6 - Prob. 3MCCh. 10.6 - Prob. 4MCCh. 10.7 - Prob. 1MCCh. 10.7 - Prob. 2MCCh. 10.7 - Prob. 3MCCh. 10.8 - How are pedigrees helpful in determining a...Ch. 10.8 - Prob. 2MCCh. 10.9 - Prob. 1MCCh. 10.9 - Prob. 2MCCh. 10 - In the list of four terms below, which term is the...Ch. 10 - Prob. 2MCQCh. 10 - Prob. 3MCQCh. 10 - Prob. 4MCQCh. 10 - Prob. 5MCQCh. 10 - Prob. 6MCQCh. 10 - Prob. 1WIOCh. 10 - List three genes mentioned in this chapter or not...Ch. 10 - Prob. 3WIOCh. 10 - Prob. 4WIOCh. 10 - Prob. 5WIOCh. 10 - Explain how each of the following appears to...Ch. 10 - Prob. 8WIOCh. 10 - Calico cats have large patches of orange and...Ch. 10 - Prob. 10WIOCh. 10 - Review Burning Question 10.10, which describes the...Ch. 10 - Prob. 1PITCh. 10 - Analyze the concept map and then explain the...Ch. 10 - Add meiosis, gametes, mutations, incomplete...Ch. 10 - In rose bushes, red flowers FF or Ff are dominant...Ch. 10 - In Mexican hairless dogs, a dominant allele...Ch. 10 - Prob. 3GPCh. 10 - Two lizards have green skin and large dewlaps...Ch. 10 - A fern with a genotype AA Bb Cc dd Ee mates with...Ch. 10 - In Fraggles, males are genotype XY and females are...
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- Explain how each of the following produces phenotypic ratios other than those Mendel observed: incomplete dominance, codominance, pleiotropy, epistasis.arrow_forwardCalculate the probability of either all-dominant or all-recessive genotypes for the alleles A, B, E, and F in the following cross: A/a;B/b;c/c;d/d;E/e;F/fx A/a;B/b;C/c;d/d;E/e;F/f 1/64 1/128 1/256 1/32 1/16arrow_forwardA cross like this (between two individuals heterozygous for two traits) is often referred to as a "two-point test cross". The expected ratio of phenotypes if the two traits are caused by unlinked genes displaying simple Mendelian dominant inheritance is 9:3:3:1. For this ratio, match each term of the ratio with the appropriate phenotype Wrinkled and green peas 1. 9 Round and yellow peas 2. 3 Round and green peas 3. 1 Wrinkled and yellow peas > >arrow_forward
- Consider the following cross examining four gene in two parental lines: Parent 1: A/a; B/b; D/d; e/e Parent 2: a/a; b/b; d/d; E/e Assuming independent assortment for the four genes, what fraction of progeny will have the same genotype as that of parent 2? O 1/2 O 1/4 1/8 O 1/16arrow_forwardWhich of the following statements is true about the molecular basis of Mendel's second law? OThe random attachment of the sister chromatids and the split of them into different daughter cells during the second round of cell division in Meiosis ensure Mendel's second law of independent assortment of alleles. OThe random attachment of the sister chromatids and the split of them into different daughter cells during the first round of cell division in Meiosis ensure Mendel's 2nd law. O The molecular basis of independent assortment of alleles is the segregation of sister chromatids during the second round of cell division in Meiosis. O The molecular basis of independent assortment of alleles is the segregation of homologous chromosomes during the second round of cell division in Meiosis. O The molecular basis of independent assortment of alleles is the segregation of homologous chromosomes during the first round of cell division in Meiosis.arrow_forwardWhich of the following violates Mendel's 1st law of segregation? Dominance Linkage Epistasis Nondisjunction What's the minimum number of tRNAs needed to translate Phenylalanine (Phe) based on the genetic code and wobble rules? 1 2 3 4 5arrow_forward
- Mendel's Law of Independent Assortment states that: the members of a pair of homologous chromosemes assort independently of each other during gamete formation none of these the members of a pair of homologous chromosomes separate from each other during gamete formati different pairs of homologous chromosomes assort independently of each other during gamete formation different pairs of homologous chromosomes separate from each other during gamete formationarrow_forwardMendel's second law (independent assortment) has its basis in which of the following? alignment of homolog pairs at the equator separation of homologs at anaphase separation of cells at telophase crossing overarrow_forwardThe following pedigree shows the incidence of ABO blood types in a family. Which individual(s) is/are a known homozygote for blood type? What is/are the possible genotype(s) of individual III-2? What is/are the possible genotype(s) of individual III-3?arrow_forward
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