BIOLOGY 2E
2nd Edition
ISBN: 9781506699851
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 12, Problem 5RQ
Mendel performed hybridizations by transferring pollen from the_____ of the male plant to the female ova.
a. anther
b. pistil
c. stigma
d. seed
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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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- For each items choose the letter of the best answer. No need to write the explanations. 26. How does polyploidy occur in plants? A. A diploid pollen united with a haploid cell B. A haploid pollen unites with a diploid seed C. A diploid sperm unites with a haploid egg D. A haploid sperm unites with a diploid egg 32. Which of the following key terms is incorrectly matched with its membrane protein? A. Channel - tunnel B. Enzymatic- metabolism C. Junction - communication D. Receptor - cross 36. Which cell membrane component is composed of fatty acids with no charge and is, therefore, nonpolar? A. Glycerol B. Head C. Phosphate group D. Tail 38. What do unsaturated fatty acids have that saturat fatty do not have in a phospholipid which allow more room for substances to go through? A. Non-polarity B. Affinity to water C. Bending at 30° D. Double bonds 39. Which of the following specific criteria for a molecule is LEAST considered when it crosses the membrane? A. Charge B. Appearance C.…arrow_forwardIf corn has 10 chromosomes, how many chromosomes will be present after meiosis I. a. 20 b.10 c. 5 d. 2arrow_forwardIn a flower, Letter P for purple is dominant over p for white. What is the phenotype of a heterozygote flower? A. PPP B. Purple C. Pp D. whitearrow_forward
- A seed dealer wants to sell four-o’clock seeds that will produceonly a single color of flowers (red, white, or pink). Explain howthis should be done.arrow_forwardThe fertilization of ovules from plant Q by pollen from plant R results in the production of seeds. What percent of the genes in each offspring’s chloroplasts will have been inherited from plant R? a.0% b.50% c.100% d.25%arrow_forwardTo avoid self-fertilization in his pea plants, Mendel had toa. spray the plants with a chemical that damaged thepollen.b. remove the anthers from immature flowers.c. grow the plants in a greenhouse that did not containpollinators (e.g., bees).d. do all of the above.arrow_forward
- A cross is made between a green four-o’clock plant and a variegated one. If the variegated plant provides the pollen, the expected outcome of the phenotypes of the offspring will bea. all plants with green leaves.b. 3 plants with green leaves to 1 plant with variegated leaves. c. 3 plants with green leaves to 1 plant with white leaves.d. some plants with green leaves, some with variegatedleaves, and some with white leavesarrow_forwardA cross is made between a pea plant that is RrYy and one that isrrYy. What is the predicted outcome of the seed phenotypes?a. 9 round, yellow : 3 round, green : 3 wrinkled, yellow :1 wrinkled, greenb. 3 round, yellow : 3 round, green : 1 wrinkled, yellow :1 wrinkled, green c. 3 round, yellow : 1 round, green : 3 wrinkled, yellow :1 wrinkled, greend. 1 round, yellow : 1 round, green : 1 wrinkled, yellow :1 wrinkled, greenarrow_forwardSome plants reproduce vegetatively and have a life cycle that features the alternation of haploid and diploid generations. The ii in organisms showing alternation of generations in their life cycles. The statement given above is completed by the information in row i_is genetically is genetically iv and the iii Rowi A. gametophytehaploidsporophyte diploid B. sporophyte haploidgametophytediploid C. sporophyte diploid gametophytetriploid D. gametophytehaploidsporophyte triplod ii 111 liv 1Varrow_forward
- Fill in the blanksarrow_forwardA pea plant has the genotype TtRr. The independent assortmentof these two genes occurs at ________ because chromosomescarrying the ________ alleles line up independently of the chromosomes carrying the ________ alleles.a. metaphase of meiosis I, T and t, R and rb. metaphase of meiosis I, T and R, t and rc. metaphase of meiosis II, T and t, R and rd. metaphase of meiosis II, T and R, t and rarrow_forwardIn agriculture, polyploid crops (like coffee, strawberries, or bananas) tend to produce ________. a. more uniformity b. more variety c. larger yields d. smaller yieldsarrow_forward
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