Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 12, Problem 3U
The F1 plants from the previous question are allowed to self-fertilize. The
a. all purple.
b. 1 purple:1 white.
c. 3 purple:1 white.
d. 3 white:1 purple.
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Experimental advantages of using pea plants include which ofthe following?a. They came in several different varieties.b. They were capable of self-fertilization.c. They were easy to cross.d. All of the above were advantages
A) Describe the data you collect from the Purple 1 x Purple 2 cross. Predict the genotype of each of the parent plants. Explain your predictions using data from the experiment. (Again, you may need to use data from other crosses!)
B) Consider the offspring, the next generation (F1), from the Purple 1 x Purple 2 cross. What is the probability of a green stem plant? How do you know this?
C) What is the probability in the F2 generation of a green stem offspring? Use a Punnett square(s) and quantitative data to explain your thinking. Upload your Punnett square(s).
You cross two pea plants both from pure breeding lines. One has hairy leaves and the other has smooth leaves. All the offspring have hairy leaves. If you take one of the offspring (F1) and cross it back to smooth-leaved plant what phenotypic ratio do you expect in the next generation?
Group of answer choices
A. half smooth and half hairy
B. all smooth
C. all hairy
D. 3/4 hairy and 1/4 smooth
Chapter 12 Solutions
Biology
Ch. 12 - What property distinguished Mendels investigation...Ch. 12 - The F1 generation of the monohybrid cross purple...Ch. 12 - The F1 plants from the previous question are...Ch. 12 - In a cross of Aa Bb cc X Aa Bb Cc, what is the...Ch. 12 - An organisms __________ is/are determined by its...Ch. 12 - Phenotypes like height in humans, which show a...Ch. 12 - Japanese four oclocks that are red and tall are...Ch. 12 - If the two genes in the previous question showed...Ch. 12 - What is the probability of obtaining an individual...Ch. 12 - Prob. 4A
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- In a particular plant species, a cross between pure breeding strains both of which have white flowers produces F1 progeny with purple flowers. The F2 generation subsequently produced resulted in 450 plants with purple flowers and 350 with white flowers. a) State the phenotypic ratio in the F2 progeny. b) Deduce the genotype of purple F2 plants. c) Deduce the genotype of F1 plants. d) Deduce the genotype of two parental plants.arrow_forwardA horticulturist runs a test cross with an offspring (F1 generation) purple plant from Question 8. The phenotypic frequencies of the resulting offspring are 50% white and 50% purple. What is the true genotype of this offspring (F1 generation) purple plant?arrow_forwardHibiscus plants have different varieties of flowers. In an instance, both the red and white flowers showed that they are incompletely dominant with each other. What is the percentage that the color of the resulting flower in the 2nd experiment will be red? Explain A) 50% B) 25% C) 100% D) 75%arrow_forward
- Cross 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_forwardHibiscus plants have different varieties of flowers. In an instance, both the red and white flowers showed that they are incompletely dominant with each other. What is the percentage of the flowers' phenotype that was produced in the Hibiscus experiment? Explain. A) 125% B) 75% C) 100% D) 50%arrow_forwardWhich of the following could be used to produce seedless watermelons?A) cross between two 2n watermelons B) cross between a 6n and a 4n watermelon C) cross between a 2n and a 3n watermelon D) cross between two 3n watermelons E) mitotic nondisjunction in a 4n watermelonarrow_forward
- True breeding eggplant plants producing deep, purple colored fruit are crossed with true breeding plants producing white fruit. The offspring of this cross all produce lighter, violet fruit. The colors of the fruit are produced by the interactions of the two different alleles. A.Predict the genotype of the F1 plant. B. Predict the expected proportions and genotypes in the F2 generation, if F1 eggplants are crossed.arrow_forwardIn Wisconsin Fast plants, purple stems (P) are dominant to green stems (p). Plants can also be tall (T) or dwarf (t). Two tall plants with purple stems are crossed with results shown in the chart. Do the results support a hypothesis that both plants were heterozygous? Show a chi square analysis to support your position.arrow_forwardIn mung beans, the green seed coat (G) is dominant than the brown seed coat (g). If a purebred mung bean which has a green seed coat was cross pollinated to a heterozygous one, what is the ratio of its genotype? Explain. A) 2:2 B) 1:2:1 C) 1:1:1:1 D) 2:1arrow_forward
- Hibiscus plants have different varieties of flowers. In an instance, both the red and white flowers showed that they are incompletely dominant with each other. What is the percentage that the color of the resulting flower will be red? A) 50% B) 25% C) 100% D) 75%arrow_forwardIn tomatoes, the red fruit color is completely dominant to yellow. Suppose a tomato plant homozygous for red is crossed with one homozygous for yellow and the progeny are allowed to self pollinate. What phenotypes do you predict in the F2 generation? a) 3 red: 1 yellow b) 9 red : 3 orange : 1 yellow c) 1 red : 2 orange : 1 yellow d) 1 red : 1 yellowarrow_forwardIn mung beans, the green seed coat (G) is dominant than the brown seed coat (g). If a purebred mung bean which has a green seed coat was cross pollinated to a heterozygous one, what is the ratio of its genotype? A) 1:2:1 B) 1:1:1:1 C) 2:2 D) 2:1arrow_forward
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