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Question: A plant line with reduced fertility comes to the attention of a plant breeder who observes that seed pods often contain a mixture of viable seeds that can be planted to produce new plants, and withered seeds that cannot be sprouted. The breeder examines numerous seed pods in the reduced fertility line and counts 622 viable seeds and 204 nonviable seeds.
Part AWhat single-gene mechanism best explains the breeder's observation?
A) Homozygous dominant or recessive genotype results in withered seed.B) Heterozygous genotype results in withered seed.C) Homozygous recessive genotype results in withered seed.D) Incomplete dominance of alleles that results in viable seed.E) Incomplete dominance of alleles that results in withered seed.F) Homozygous dominant genotype results in withered seed.
A five year old girl displayed increased apetite, increased urinary frequency and thirst. Her physician suspected new onset diabetes mellitus & confirmed that she had elevated urine glucose and ketones.
Assume that, during biological research, it became possible to incorporate fully functional chloroplasts into the basal layer of our epidermal skin cells. Knowing the structure and function of chloroplasts, how will this influence our body.
Explain the pattern of uterine involution. What do these abbreviations mean: U/U, 1/U, U/2. Explain the correct way to massage the uterine fundus.
Most of the endosperm is missing from Capsella seeds that contain the largest embryos. Discuss what happened to the endosperm in these seeds?
Given the importance of fumarase to the citric acid cycle how is it likely for people with fumarase deficiency to produce adequate ATP for survival?
A geneticist determines that long hair length in mink is dominant over short hair (recessive).define how his geneticist friend should advise.
To obtain a better feeling for atomic dimensions, suppose that the page on which this question is printed is made entirely of the polysaccharide cellulose,
Determine the mechanism of action, and how do beta blockers affect cardiac function in such a way as to decrease blood pressure?
As a biologist it is your job to look for plants that have evolved structures with a selective advantage in dry hot conditions. Which of the adaptions would be least likely to meet the objective.
What focal length must a pair of glasses have if they are to correct the vision of a person with a near point of 57.5 cm? The glasses are worn 1.8 cm from the eye.
Recognize a group or professional in your area working in the field of biological science. Interview an individual from the organization who works straight in the biological sciences field to develop an appreciation for the type of work, latest resea..
Determine what can be a reasonable explaination that some animals were found to have high levels of antibodies, but no such viral nucleic acids could be detected?
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