Which of the following statements correctly describes all – or – none principle?
A) A st...
Biology, 20.02.2020 09:19 miner12924owhu4d
Which of the following statements correctly describes all – or – none principle?
A) A stimulus repolarizes all of the neurons in the body or not at all
B) A neuron produces a complete response to every stimulus
C) A neuron produces a complete response or no response to a stimulus
D) A stimulus depolarizes all of the neurons in the body or not at all
Answers: 2
Biology, 21.06.2019 23:00
Approximately 90% of all cases of polycystic kidney disease are inherited in an autosomal dominant fashion. the disease is typically related to mutations to genes (pkd1 and pkd2). pkd genes can be found on chromosome 16. the disease occurs in approximately 1: 800 to 1: 1000 people. here is a hypothetical example. the dominant allele d will cause the development of pkd. the recessive allele is known as d. what genotypes would correspond to suffering from pkd? dd, dd what genotypes would correspond to being normal (not suffering from pkd)? dd consider that 1: 1,000 people have pkd in your population of 325million. consider that pkd is inherited in an autosomal dominant fashion. show you math for all of the following questions: what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is the genotypic frequency for dd? what is p? what is q? how many people in your population would have pkd?
Answers: 3
Biology, 22.06.2019 02:30
Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers
Answers: 3
Biology, 22.06.2019 11:30
In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48
Answers: 1
Biology, 22.06.2019 13:00
Pulmonary arteries carry highly oxygenated blood. true or false?
Answers: 1
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