Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 18, Problem 6RQ
Which description is an example of a
- A certain duck has a blue beak
- A mutation occurred to a flower
- Most cheetahs live solitary lives
- both a and c
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Part A
Why is mimicry evolutionarily advantageous (helpful/beneficial)?
U =- E E XA
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The wing polymorphic oricket, Grylus deaensis, has some individuals who are capable of long flights fong legs, trong fight muscles) and olhers who are not (short legs, weak tight muscles) Fight-capable orioeta
have delayed reproduction, with lower ovarian function in females and less courtahip song production in males
A biologist genotypes a population of orickats ving in an urtan feld in Dalas at the wing gene, which has two aleles, W and w Crickets with at least one oopy of the Watele are fight capable, while ww homarygoles
are fight-incapable. She finds 12 crickets with genotype WW. 35 with genotype Ww and 63 with genotype ww. Keep these numbers for the next two questiona
What is the frequency of the W allele?
Is each of the following traits or diseases determined by nuclear genes?A. Snail coiling patternB. Dwarfism in mice due to a mutation in Igf2C. Variegated leaf color in the four-o’clock plantD. Leber hereditary optic neuropathy
Chapter 18 Solutions
Biology 2e
Ch. 18 - Figure 18.14 Which is most likely to survive,...Ch. 18 - Figure 18.22 If two species eat a different diet...Ch. 18 - Figure 18.23 Which of the following statements is...Ch. 18 - Which scientific concept did Charles Darwin and...Ch. 18 - Which of the following situations will lead to...Ch. 18 - Which description is an example of a phenotype? A...Ch. 18 - Which situation is most likely an example of...Ch. 18 - Which situation would most likely lead to...Ch. 18 - What is the main difference between dispersal and...Ch. 18 - Which variable increases the likelihood of...
Ch. 18 - What is the main difference between autopolyploid...Ch. 18 - Which reproductive combination produces hybrids?...Ch. 18 - Which condition is the basis for a species to be...Ch. 18 - Which situation is not an example of a prezygotic...Ch. 18 - Which term is used to describe the continued...Ch. 18 - Which components of speciation would be least...Ch. 18 - If a person scatters a handful of garden pea plant...Ch. 18 - Why do scientists consider vestigial structures...Ch. 18 - How does the scientific meaning of “theory” differ...Ch. 18 - Explain why the statement that a monkey is more...Ch. 18 - Why do island chains provide ideal conditions for...Ch. 18 - Two species of fish had recently undergone...Ch. 18 - Why can polyploidy individuals lead to speciation...Ch. 18 - What do both rate of speciation models have in...Ch. 18 - Describe a situation where hybrid reproduction...
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- A mutation that alters the embryonic expression pattern of an _______ may lead to major differnces in the adult form. a. derived trait c. homologous structure b. homeotic gene d. analogous strcuturearrow_forwardFigure illustrates albinism in two different species. Describetwo other genetic disorders found in both humans and animals.arrow_forwardDon't get the answer to this onearrow_forward
- Based on the text: 1. Describe how cockroaches pest mates. 2. Describe the development of the offspring( cockroaches) 3. Compare the genetic relationship of the parent pest and its offspring. (Cockroaches) Use the word:GENETICALLY IDENTICAL/DIFFERENT, GENETIC RECOMBINATION. 4.Predict what factors in the environment can be altered to stop the pest from reproducing.(COCKROACHES)arrow_forwardIn genetics, F stands for filial, which means ________. a. friendly c. final b. offspring d. hairlikearrow_forwardFigure 1.7 Decide if each of the following is an example of inductive or deductive reasoning. All flying birds and insects have wings. Birds and insects flap their wings as they move through the air. Therefore, wings enable flight. Insects generally survive mild winters better than harsh ones. Therefore, insect pests will become more problematic if global temperatures increase. Chromosomes, the carriers of DNAr separate into daughter cells during cell division. Therefore, each daughter cell will have the same chromosome set as the mother cell. Animals as diverse as humans, insects, and wolves all exhibit social behavior. Therefore, social behavior must have an evolutionary advantage.arrow_forward
- Part 1= You are to discover the chromosomal location (autosomal or X linked) and mode of inheritance for two new fly mutations couchpotato (cp) and happyhour (hh) The homozygous couchpotato (cpcp) phenotype is (sedentary) an extreme lack of activity The homozygous happyhour (hhhh) can drink any other fly under the table so phenotype (drinker) PARENTS Cross Male double homozygous mutants cp hh with Female wild wild CP HH are to be crossed BUT FIRST you don’t know if either gene is on the X chromosome Parental diploid genotypes could be: male cpcphhhh female CPCPHHHH if Both genes autosomal or Male XcpYhhhh female XCPXCPHHHH if cp on the X chromosome and hh autosomal or Male cpcpXhhY female CPCPXHHXHH if hh on the X chromosome and cp autosomal What are the female and male PARENTAL GAMETE GENOTYPES for the above parental crosses if: a) Both genes were autosomal ((REMEMBER BOTH GENDER HAVE ONE GAMETE GENO) b) cp gene on the X chromosome and hh autosomal…arrow_forwardDescribe the following mutations in a fruit fly: Dumpy: Curly: Apterous: Ebony: Vestigial: Antennapedia: White eye: Bar eye: Vermillion eye: Lobe eye: Sepia eye:arrow_forward________ are a commonly used research model for studying the effects of genetic defects in mammals. Goats Goats Mice Mice Horsesarrow_forward
- The genes A B C occur in that order in fruit flies. A is 10 map units from B, and B is 20 map units from C. How far is A from C? A. 30 map units B. 20 map units C. 40 map units D. 10 map units E. 0.2 map unitsarrow_forwardHow will this mutation affect descendants of this puppy? O The mutation will cause a genotypic change in this puppy but its descendants will not inherit this mutation. The mutation will not cause a genotypic change in the puppy and its descendants, but will cause a phenotypic change O The mutation will cause a genotypic and phenotypic change in the puppy, but the descendants are not affected by this mutation. The mutation will cause a genotypic change in the puppy but will not cause a phenotypic change in the puppy and its descendants.arrow_forwardPolyploidy is very common in flowering plants: approximately 40% of all flowering plant species are polyploids. Although polyploidy exists in many different animal groups, it is much less common. Why is polyploidy more common in plants than in animals? Give one or more possible reasons.arrow_forward
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