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Q1. Two pigs, one with a 6 cm tail and one with a 30 cm tail were crossed. Their F1 offspring had tails of 18 cm. The F2 piglets had tails ranging in 4 cm intervals from 6 cm to 30 cm. Most had 18 cm tails. 1/64 had 6 cm tails and 1/64 had 30 cm tails.
Explain how tail length is inherited. Indicate how many gene pairs are at work and designate the genotypes of the two parents and lf the F1 offspring.
Q2. Which part of the integumentary system performs the functions? Region of rapidly-growing keratin-producing cells, and the part that responds to very light changes in pressure.
What is potentiation and how does it pose a threat to living organisms. what responsibility does carson believe scientists have to the public.
Determine what it may tell us about the dietary history of humans. Establish whether or not you believe it is incorrect to refer to any modern species as primitive, and give details why.
The time-of-entry mapping method was used to determine the first five markers transferred from each Hfr during a synchronized conjugation experiment. The markers and their transfer order form each Hfr are shown below.
Diploid nuclei of the ascomycete, Neurospora crassa, contain 14 chromosomes. A single diploid cell in an ascus will undergo one round of meiosis, followed in each of daughter cells by one round of mitosis, producing a total of eight ascospores.
At another locus, sepia eyes are inherited as an autosomal (non sex linked) recessive. The presence of the white eye phenotype (x superscript w x superscript w in females, x superscript y in males) masks sepia phenotype, so regardless of the sepia ge..
The phenotypic variances were 9.4 cm2 for the inbred strain and 26.4 cm2 for the randomly pollinated population. Guess the broad sense heritability of ear length in these populations. What are the usual frequencies of the gametes from a plant with th..
Distinguish between pathological and trauma. Explain the main pathways by which energy from the sun or from specific chemical reactions enters organisms and passes from organism to organism or back into the environment.
What does this show about the relation between voluntary and involuntary reflex movement. If the bacteriorhodopsin molecules were randomly oriented, would you expect ATP to be synthesized? Give details about the answers.
How to comprise the genotypes of both parents. The pronghorn of the United States and the saiga antelope of the central Asian steppes live in similar habitats and have alike adaptations. Which of the features would you be surprised to discover in a s..
What must a biologist do if she or he finds that different methods of analyzing the same data give different estimates of the relationships among certain taxa.
A friend has just returned from a trans-Atlantic jet aircraft flight and reported that the plane dropped about1000 m when it entered an "air pocket." Explain to a friend what apparently happened to cause this drop.
What advantage will heterozygotes have over the homozygotes. Why selection inevitably favors any gene that is good at getting into the next generation, regardless of whether that gene helps or hurts the ecosystem, the species, the group, or even the ..
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