Biology: The Dynamic Science (MindTap Course List)
4th Edition
ISBN: 9781305389892
Author: Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher: Cengage Learning
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Chapter 29, Problem 1ITD
Summary Introduction
To review:
The relation of reproductive isolation related to the flowering plants that are associated with annual or perennial genotypes.
Introduction:
Adaptation of species is defined as the ability of a species to adjust according to their surroundings. These surroundings may include temperature, availability of
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Some plants reproduce vegetatively and have a life
cycle that features the alternation of haploid and
diploid generations. The
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in organisms showing alternation of generations in
their life cycles. The statement given above is
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A. gametophytehaploidsporophyte diploid
B. sporophyte haploidgametophytediploid
C. sporophyte diploid gametophytetriploid
D. gametophytehaploidsporophyte triplod
ii
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(d)
Scientists believe that the yellow fern arose from hybridization with another fern
on the island. Create a diagram of this hybridization that tracks the origin of the
chromosome number in the yellow fern.
no need to explain just need to know if its a,b c, or d
1.) Alternation of generation refers to the alternation of diploid and haploid generation. What is the difference between the alternation of generation in moss and pine?
a.) In moss, gametophyte is dominant; whereas, in pine, sporophyte is dominant.
b.) In moss, sporophyte is dominant; whereas, in pine, gametophyte is dominant.
c.) In moss, gametophyte is dependent on sporophyte; whereas, in pine, sporophyte is dependent on gametophyte.
d.) In moss, meiosis occurs during gamete formation; whereas, in pine, it occurs in zygote formation.
2.) Meiosis involves two phases, meiosis I and meiosis II. This type of cell division occurs during the formation of both sperm and ovum. The first meiotic division of the primary spermatocyte results in two secondary spermatocytes. .What is the result of the first meiotic division of the primary oocyte?
a.) two secondary oocytes
b.) two polar bodies
c.) two ovum
d.) one secondary oocyte and…
Chapter 29 Solutions
Biology: The Dynamic Science (MindTap Course List)
Ch. 29.1 - What major reproductive adaptations facilitated...Ch. 29.1 - How did seeds, pollen, and pollination affect the...Ch. 29.2 - Why are gymnosperms called naked seed plants?Ch. 29.2 - Prob. 2SBCh. 29.2 - Summarize the steps of the pine life cycle.Ch. 29.3 - Prob. 1SBCh. 29.3 - Prob. 2SBCh. 29.4 - Prob. 1SBCh. 29.4 - Prob. 2SBCh. 29.5 - Name four major ways human societies rely on seed...
Ch. 29.5 - Prob. 2SBCh. 29 - Prob. 1TYKCh. 29 - Prob. 2TYKCh. 29 - Prob. 3TYKCh. 29 - Prob. 4TYKCh. 29 - Prob. 5TYKCh. 29 - Prob. 6TYKCh. 29 - Prob. 7TYKCh. 29 - Prob. 8TYKCh. 29 - Prob. 9TYKCh. 29 - Adaptations that correlate with the adaptive...Ch. 29 - Prob. 11TYKCh. 29 - Discuss Concepts Modern humans emerged about...Ch. 29 - Discuss Concepts Compare the size, anatomical...Ch. 29 - Prob. 14TYKCh. 29 - Discuss Concepts Working in the field, you...Ch. 29 - Prob. 16TYKCh. 29 - Prob. 1ITDCh. 29 - Prob. 2ITD
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- corn id purple smooth Purple wrinkled yellow smooth yellow wrinkled W20-AB1-D-13 486 152 162 54 W21-BB1-A-19 445 152 154 94 W20-BB1-D-19 501 153 167 88 W20-AB1-C-16 489 153 94 56 W20-BB1-H-11 480 153 94 56 DIHYBRID CROSS1. ) Consider the possibility that your observational data are of plantsresulting from a dihybrid cross, where the previous generation were heterozygousfor both traits (RrSs x RrSs). Create a Punnett square for this cross and presentthe expected phenotypic ratio.2.) Present your results in a table as dihybrids and determine the observedphenotypic ratio of purple/smooth to purple/shrunken to yellow/smooth toyellow/shrunken. Consider the plant as a whole rather than the individual cobs.arrow_forwardA genome duplication event, creating a tetraploid plant from a diploid parent plant, can sometimes result in the creation of a new species. This type of speciation is called allopatric adaptive radiation sympatric gradual speciation Which of the following is an example of a postzygotic barrier? Hybrid offspring of two species of jimsonweeds always die before reproducing One plant lives on acid soil, the other on alkaline soil. Two species of leopard frogs have different mating calls Mallard and pintail ducks mate at different times of the year Pollen of one species of tobacco cannot fertilize a different species of tobacco.arrow_forwardWhy the transfer to wild plants from crops of genes that provide pesticide and insecticide resistance may have evolutionary consequences? Explain.arrow_forward
- A single plant twice the size of others in the same populationsuddenly appears. Normally, plants of that species reproduceby self-fertilization and by cross-fertilization. Is this newgiant plant simply a variant, or could it be a new species? Howwould you determine which it is?arrow_forwardSympatric speciation by allotetraploidy has been proposed as acommon mechanism for speciation. Let’s suppose you were interestedin the origin of certain grass species in southern California.Experimentally, how would you go about determining if some ofthe grass species are the result of allotetraploidy?arrow_forwardwhich statement is false? 1)In the context of the evolution of senescence, the aphorism "live fast and die young" means that organisms with a more risky behavior will have a shorter life span. 2)Allopatric speciation is a type of speciation process that takes place in different geographic locations.arrow_forward
- Define speciation genes. and What is the importance of speciation genes?arrow_forwardAn alternation of generation life cycle in plants is advantageous because: each generation is morphologically similar. it protects reproductive structures. the gametes fuse in open water. it is haploid-dominant.arrow_forwardSteps that should be conducted of genetically glowing treearrow_forward
- The leafy, green moss plants that are familiar are gametophytes, haploid plants. This is very different from flowering plants and other seed plants. Does a leafy green moss plant grow from a spore or from a fertilized egg? Does the moss plant have both paternal parent and maternal parent?arrow_forwardA large plant arose in a natural population. Qualitatively, it looked just the same as the others, except much larger. Is it more likely to be an allopolyploidarrow_forwardWhy decomoposition occurs at a faster rate in the tropics?arrow_forward
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