Body weight is a multifactorial trait. Choose the term that best completes each

Question

Body weight is a multifactorial trait. Choose the term that best completes each of the following sentences. 1. Scientific studies of body weight use a measurement called Click to seloct .which is weight in proportion to height 2. The protein hormone lics to seectstimulates the hypothalamus to decrease appetite. 3. Treatment with leptin results in weight loss for some people but not for others. Leptin resistance, or unresponsiveness to leptin when it is given as a drug, is due to mutations in the gene that encodes ((Cick to select 4. The hormone that is produced by the stomach in response to hunger is Cick to st Choose the term that best completes each of the following sentences. . A trait that is influenced by two or more genes is a Ik to eco trait 2. A trait that is influenced by both genes and the environment is a c to eet trait . A trait that is influenced by only one gene is a Cick to seect Dtrait . DNA sequences thet contribute to polygenic traits are called Cick to soecto 6 7 For polygenic traits, empiric risk is used to predict the chance that an individual will express the trait Determine whether each of the ollowing statements about empiric risk is true or faise 1 Calculations of empiric risk are based on Mende's laws t B 2. Prevalence is the number of new cases of a disorder that are diagnosed per year in e population of a given size.C oecn Empiric risk increases with the severity of the disorder. o Empiric risk increases with the number of family members who are affected with the disorder Cl tosc disorder, it is necessary to understand th@ transmission 5. To use empiric risk to predict the likelhood that an nd vidual wil have pattern of the disorder. to eo

Explanation / Answer

5.1.BMI, (body mass index)

5.2.Leptin,

5.3.LEPR gene,

5.4.ghrelin

6.1.polygenic trait,

6.2.multifactorial trait,

6.3.monogenic trait,

6.4.quantitative trait loci(QTLs)

7.1. false :: Empiric risk is not calculated, but is an observed population statistic.

7.2. true (period prevalence)

7.3. True

7.4 true

7.5 false (Empiric risk is used to predict recurrence of a multifactorial trait in a family. Hence no need to understand the transmission pattern)

  

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