Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 3, Problem 25QP
Meiosis Explains Mendel’s Results: Genes Are on Chromosomes
Define the following pedigree symbols:
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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 formation
List the three principal mechanisms that generate new genetic combinations in meiosis.
An individual heterozygous for a reciprocal translocation possesses the following chromosomes:
A B • C D E F G
A B • C D V W X
R S • T U E F G
R S • T U V W X
Q. Diagram the alternate, adjacent-1, and adjacent-2 segregation patterns in anaphase I of meiosis.
Chapter 3 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 3.4 - Why do scientists design experiments to disprove...Ch. 3.4 - Should Ockhams razor be considered an irrefutable...Ch. 3.7 - Prob. 1EGCh. 3.7 - For most cases, a p value of 0.05 is used to...Ch. 3 - Prob. 1CSCh. 3 - Prob. 2CSCh. 3 - Prob. 3CSCh. 3 - Prob. 1QPCh. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...
Ch. 3 - Prob. 4QPCh. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Prob. 6QPCh. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - Crossing Pea Plants: Mendels Study of Single...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - Prob. 14QPCh. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - Prob. 17QPCh. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - More Crosses with Pea Plants: The Principle of...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Meiosis Explains Mendels Results: Genes Are on...Ch. 3 - Prob. 26QPCh. 3 - Prob. 27QPCh. 3 - Variations on a Theme by Mendel A characteristic...Ch. 3 - Prob. 29QPCh. 3 - Variations on a Theme by Mendel Pea plants usually...Ch. 3 - Prob. 31QPCh. 3 - Prob. 32QPCh. 3 - Prob. 33QPCh. 3 - Prob. 34QPCh. 3 - Prob. 35QPCh. 3 - Prob. 36QP
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- A karyotype shows that a child has Klinefelter syndrome (47,XXY). If the child is also colorblind (due to a recessive X-linked allele), despite his parents having normal color vision, in which parent and stage of meiosis did nondisjunction occur? And explain why .arrow_forwardPlease discuss during which phases of Meiosis Mendel’s Law of Segregation, and the law of independent assortment take place.arrow_forwardThe gene for nose shape is found on the X chromosome. Round nose is dominant to pointed nose. Human individuals with XXY (an additional X chromosome) are male. Individuals with XO (only one X chromosome) are female. For the following family, identify the possible nondisjunction events (rare mistakes during meiosis) that could explain the phenotype of the child. A man with a pointed nose and a woman with a round nose have a daughter with a round nose. This daughter has Turner Syndrome (genotype XO: one X chromosome). Nondisjunction must have occurred in melosis 2 of the mother More than one of the answers is correct Nondisjunction must have occurred in meiosis 1 of the father Nondisjunction must have occurred in meiosis 1 of the mother Nondisjunction must have occurred in meiosis 2 of the fatherarrow_forward
- A diploid fruitfly has 8 chromosomes. How many chromosomes are present in an individual with trisomy in Chromosome 1 and Chromosome 2? A person is born with two X chromosomes, trisomy 21 and two copies of other chromosomes. How many chromosomes are present in this individual? * A couple is planning to have three children. What is the probability of having all boys? *arrow_forwardA color-blind woman with Turner syndrome (XO) has a father who is color blind.Given that the gene for the color-blind condition is recessive and X-linked, provide a likely explanation for the origin of the color-blind and chromosome constitution in the color-blind woman. nondisjunction in the mother in meiosis I or II nondisjunction in the father at meiosis I no abnormalities had to occur to produce this daughter nondisjunction in the father in meiosis I or II nondisjunction in both the mother and father in meiosis I.arrow_forwardWhat is independent assortment? Does independent assortment occur during mitosis or during meiosis?arrow_forward
- Genes on the same chromosome tend to stay together during _____ and end up in the same ______. a. mitosis; body cell b. mitosis; gamete c. meiosis; body cell d. meiosis; gamete e. both a and darrow_forwardDescribe the chromosomal alterations and phenotype of cri du chat syndrome and Prader-Willi syndrome.arrow_forwardHuman sex chromosomes are XX for females and XY for males. a. With respect to an X-linked gene, how many different types of gametes can a male produce? b. If a female is homozygous for an X-linked allele, how many different types of gametes can she produce with respect to this allele? c. If a female is heterozygous for an X-linked allele, how many different types of gametes can she produce with respect to this allele?arrow_forward
- In the cross between a female AaBbccDdee and male AabbCcDdee, what proportion of the progeny are expected to be phenotypically identical to the female parent?arrow_forwardDraw and label a 2n=4 cell going through anaphase I of meiosis.arrow_forwardDiscuss the postulates of Mendel in relation to meiosis.arrow_forward
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