Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Textbook Question
Chapter 17, Problem 4TY
Which of Mendel’s laws cannot be observed in a single-factor cross?
- a. segregation
- b. dominance/recessiveness
- c. independent assortment
- d. codominance
- e. All of the above can be observed in a single-factor cross.
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Mendel’s crossing of round-seeded pea plants with wrinkled-seeded pea plants resulted in progeny that all had round seeds. This indicates that the wrinkled-seed trait is
Select one:
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e. recessive
Which of the following statements describes Mendel’s Law of Segregation?
a.
The dominant allele is represented with an uppercase letter and the recessive allele is represented with a lowercase letter.
b.
A Punnett square can be used to predict the outcome of a parental cross.
c.
Dominant alleles are always expressed in a homozygous or heterozygous individual.
d.
A Bb individual will produce B and b alleles, while a bb individual will only produce a b allele.
Which of the following in not an extension of Mendel's
A. Codominance
B. Polygonic traits
C. Complete dominance
D. Incomplete dominance
Chapter 17 Solutions
Biology
Ch. 17.1 - Prob. 1CCCh. 17.1 - Prob. 2CCCh. 17.1 - Prob. 3CCCh. 17.1 - Prob. 4CCCh. 17.1 - Mendels Laws of Inheritance Concept Check: What...Ch. 17.2 - Prob. 1CSCh. 17.2 - Prob. 2CSCh. 17.2 - Prob. 1CCCh. 17.3 - Prob. 1CCCh. 17.3 - Prob. 2CC
Ch. 17.4 - Prob. 1CCCh. 17.4 - Prob. 1EQCh. 17.4 - Prob. 2EQCh. 17.4 - Prob. 3EQCh. 17.5 - Prob. 1CSCh. 17.5 - Prob. 1CCCh. 17.6 - Prob. 1CCCh. 17 - Prob. 1TYCh. 17 - During which phase of nuclear division does the...Ch. 17 - Prob. 3TYCh. 17 - Which of Mendels laws cannot be observed in a...Ch. 17 - During a __________blank, an individual with the...Ch. 17 - Prob. 6TYCh. 17 - Prob. 7TYCh. 17 - A hypothetical flowering plant species produces...Ch. 17 - Genes located on a sex chromosome are said to be...Ch. 17 - Prob. 10TYCh. 17 - Prob. 1CQCh. 17 - A cross is made between individuals having the...Ch. 17 - Core Concept: Systems We can view life as a...Ch. 17 - Discuss the principles of the chromosome theory of...Ch. 17 - When examining a human pedigree, what patterns do...
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- Which of the following statements describes Mendel’s Law of Segregation? Select one: a. A Punnett square can be used to predict the outcome of a parental cross. b. A Bb individual will produce gametes with the B allele and gametes with the b allele, while a bb individual will only produce gametes with the b allele. c. Dominant alleles are always expressed in a homozygous or heterozygous individual. d. The dominant allele is represented with an uppercase letter and the recessive allele is represented with a lowercase letter.arrow_forwardAll are true about Mendel’s law of segregation except A. All F1 generation will inherit dominant characteristics. B. At a given locus, a diploid parent can only contribute one allele to its offspring. C. During gamete formation, segregation of the alleles of one allelic pair is independent of the segregation of alleles of another pair. D. The genotype ratio in F2 generation is 1:2:1arrow_forwardChromosomes undergo division during meiosis. Such chromosomal behaviors are consistent with Mendel's laws of a. Unit Characters b. None of these c. Dominance and Recessiveness d. Independent Assortment e. Secondary Nondisjunction Chromosomes undergo division during meiosis. Such chromosomal behaviors are consistent with Mendel's laws of a. Unit Characters b. None of these c. Dominance and Recessiveness d. Independent Assortment e. Secondary Nondisjunctionarrow_forward
- Which of the following would conform to Mendel’s law of independent assortment?a. all the alleles of different genesb. alleles located on different chromosomesc. alleles located on sex chromosomesd. alleles located on the same chromosomearrow_forwardGregor Mendel noticed that recessive characteristics are "masked" in the F1 generation but reappear in the F2 generation. Which of the following laws best explains this observation? a. The law of products b. The law of segregation c. The law of independent assortment d. The law of linked alleles e. None of the abovearrow_forwardWhich of the following does not cause a modification of Mendelian ratios? a. Sex-linked inheritance b. Multiple alleles C. None d. Maternal inheritancearrow_forward
- A cross between homozygous purple-flowered and homozygous white-flowered pea plants results in offspring with purple flowers. This demonstrates Group of answer choices a. dominance. b. true-breeding. c. the mistakes made by Mendel. d. the blending model of genetics. e. a dihybrid cross.arrow_forwardIn Mendel’s terminology, a “true-breeding” variety of a particular plant: a. Has a homozygous genotype for that trait b. All of the listed choices are correct c. Will have the same phenotype as the parental plant d. Always has offspring with the same phenotype for that traitarrow_forwardIn a test cross, peas of an unknown genotype are crossed with peas of a known genotype. In this example, smooth peas are the unknown and wrinkled peas are the known (rr). If half of the offspring from that cross are smooth and half are wrinkled, what is the genotype of the unknown plant? O a. Homozygous dominant: RR O b. Homozygous recessive: rr Oc. Incomplete dominance d. Heterozygous dominant: Rr CLEAR MY CHOICEarrow_forward
- The petal color of a species of flowers is inherited along Mendelian ratios. A cross of two plants with red flowers produces 1,068 plants with red flowers and 390 plants with yellow flowers. A. Propose a model to explain the inheritance of red and yellow flowers. B. Determine the probability of producing a plant with yellow flowers when a heterozygous plant with red flowers is crossed with a homozygous plant with yellow flowers. B I U 三 三 of 22 Answered tv MacBook Air 吕口 F3 D00 F4 # $ & 3 4 5 6 7 Q W E Yarrow_forwardFor Mendel's law of segregation requires that a. the genes for the traits he studied must be located on the same chromosome. b. chromosomes be duplicated by mitosis. C. genes are not transmitted independently of each other. d. two alleles at any locus are distributed into separate gametes during meiosis. e. only triploid organisms demonstrate inheritance patterns.arrow_forwardMendel used dihybrid crosses to test the idea that alleles for two different characters assort independently. In a typical dihybrid cross (such as RrTt x RrTt), what proportions of phenotypes would be expected in the offspring? Select one: a. 9:3:3:1 b. 4:4:4:4 c. 2:2 d. 3:1 e. 100% dominant phenotypearrow_forward
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