Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 12, Problem 6RQ
Which is one of the seven characteristics that Mendel observed in pea plants?
- flower size
- seed texture
- leaf shape
- stem color
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Which is one of the seven characteristics that Mendel observed in pea plants? a. flower size b. seed texture c. leaf shape d. stem color
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In the peas that Mendel studied, the traits all affected one another. True or False.
Chapter 12 Solutions
Biology 2e
Ch. 12 - Figure 12.5 In pea plants, round peas (R) are...Ch. 12 - Figure 12.6 What are the genotypes of the...Ch. 12 - Figure 12.12 What ratio of offspring would result...Ch. 12 - Figure 12.16 In pea plants, purple flowers (P) are...Ch. 12 - Mendel performed hybridizations by transferring...Ch. 12 - Which is one of the seven characteristics that...Ch. 12 - Imagine you are performing a cross involving seed...Ch. 12 - Consider a cross to investigate the pea pod...Ch. 12 - A scientist pollinates a true-breeding pea plant...Ch. 12 - The observable traits expressed by an organism are...
Ch. 12 - A recessive trait will be observed in individuals...Ch. 12 - If black and white true-breeding mice are mated...Ch. 12 - The ABO blood groups in humans are expressed as...Ch. 12 - In a mating between two individuals that are...Ch. 12 - If the allele encoding polydactyly (six fingers)...Ch. 12 - A farmer raises black and white chickens. To his...Ch. 12 - Assuming no gene linkage, in a dihybrid cross of...Ch. 12 - The forked line and probability methods make use...Ch. 12 - How many different offspring genotypes are...Ch. 12 - Labrador retriever's fur color is controlled by...Ch. 12 - Which of the following situations does not follow...Ch. 12 - Describe one of the reasons why the garden pea was...Ch. 12 - How would you perform a reciprocal cross for the...Ch. 12 - Mendel performs a cross using a true-breeding pea...Ch. 12 - Calculate the probability of selecting a heart or...Ch. 12 - The gene for flower position in pea plants exists...Ch. 12 - Use a Punnett square to predict the offspring in a...Ch. 12 - Can a human male be a carrier of red-green color...Ch. 12 - Why is it more efficient to perform a test cross...Ch. 12 - Use the probability method to calculate the...Ch. 12 - Explain epistatis in terms of its Greek-language...Ch. 12 - In Section 12.3, ''Laws of Inheritance," an...Ch. 12 - People with trisomy 21 develop Down’s syndrome....Ch. 12 - A heterozygous pea plant produces violet flowers...
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- Crossing Pea Plants: Mendels Study of Single Traits Define Mendels Law of Segregation.arrow_forwardCrossing Pea Plants: Mendels Study of Single Traits Of the following, which are phenotypes and which are genotypes? a. Aa b. tall plants c. BB d. abnormal cell shape e. AaBbarrow_forwardOver the years, Mendel experimented with more than 30,000 pea plants. Why did Mendel collect data on so many plants? Why didn’t he study just one cross? Hint: Read “What Are the Odds?” on page 124 before answering.arrow_forward
- Mendel’s model organism for studying inheritance was the garden pea. What are the advantages of using peas to study genetics? All choices are correct Mating between garden peas can be carefully planned and controlled Garden peas produce a large number of offspring with every mating Garden peas have a short generation time Garden peas are available in many varietiesarrow_forwardList the seven characteristics of pea plants that Mendelchose to studyarrow_forwardAll of the following are reasons that Mendel chose the pea plant as a model system for his studies EXCEPT ________. A) peas have a relatively short generation time B) peas produce large numbers of seeds C) he could control which parents were involved in mating D) peas only reproduce by cross-fertilizationarrow_forward
- Mendel’s ________ tells us that paired genes are divided equally into gametes so that offspring have an equal likelihood of inheriting either gene. 1. law of segregation 2 law of dominance 3 law of inheritancearrow_forwardDescribe the characteristics of the garden pea that made it a good organism for Mendel's analysis of the basic principles of inheritance.arrow_forwardMendel chose peas as his model organism all the following are reasons for that expect they have short generation times they are easy to grow their male and female gametes are seperated they were rare and thus interesting to studyarrow_forward
- Why was Mendel’s success dependent on his studying characteristics that exhibit only two easily distinguished phenotypes, such as white versus gray seed coats and round versus wrinkled seeds? Would he have been less successful if he had instead studied traits such as seed weight or leaf length, which vary much more in their phenotype?arrow_forwardMendel crossed peas having round green seeds with peas havingwrinkled yellow seeds. All F1 plants had seeds that were roundand yellow.arrow_forwardCan you give an example of trait in the plant that Mendel studied?arrow_forward
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