KNES 437 Lecture Notes - Lecture 4: Twin, Leptin, Twin Study

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grayworm636

30 Jan 2020

School

University of Calgary

Department

Kinesiology

Course

KNES 437

Professor

Kelly Anne Erdman ,

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Document Summary

Genetic mutations are powerful in severe, early onset obesity: once babies are born, if theres a genetic issue, they put on a lot of weight fast, 2. Study of genetics may lead to safe & specific drugs: 3. Heritability: heritability = the proportion of the total variation in a gene trait due to genetic factors, passed from one generation to the next. In other words, individual"s chance of being obese increases when they have obese parents or relatives. If both parents are overweight, theres a significant increase in the risk for the child to be overweight. Heritability of fat mass: population measure of variation, 40 to 70% heritability. Obesity gene causing leptin deficiency: the first identified genetic mutation leading to obesity is the gene mutation for leptin deficiency. Leptin is produced from fat cells and registered by the brain. Leptin is released as we are satiated (when we"re full).

Related Questions

QUESTION 1

Adolescents who snack on high-fat foods or sugary foods willdevelop type II diabetes as adults if they

		are genetically predisposed.
		do not change their eating habits.
		gain too much weight.
		all of these.

QUESTION 2

With regard to food intake, if parents do not set limits forchildren, children will

		probably become obese by the time they are adolescents.
		not learn to set limits for themselves in other aspects of lifeas well.
		become too independent as adults.
		all of these.

QUESTION 3

Children will learn to disregard their own internal hunger andsatiety cues if they

		observe their parents habitually overeating.
		watch too much television, especially food advertisements.
		eat too many complex carbohydrates during the day.
		drink too many soft drinks.

QUESTION 4

Parents can teach children to become responsible with regard tofood intake by

		modeling the behavior they want the children to learn.
		creating positive learning experiences around food.
		giving children a certain amount of authority with regard tofood choices.
		all of these.

QUESTION 5

When food is overly important or not attended to properly in thefamily, experts have found that there

		are more eating disorders.
		are fewer incidences of binging and purging.
		is a greater chance for discipline problems.
		all of these.

QUESTION 6

The first concrete element associated with trust, safety, andsecurity between an infant and the primary caregiver is

		love.
		food.
		attention.
		all of these.

QUESTION 7

Adolescent girls who believe they do not measure up to mediaportrayal of the perfect young body image

		may develop eating disorders.
		develop a stronger self-image and more confidence.
		usually are more accepting of their bodies in spite of themagazines.
		frequently commit suicide.

QUESTION 8

Experts agree that people with type II diabetes who ate foodshigh in fat or sugar as adolescents

		developed the disease because of their eating habits.
		developed the disease because of their genetic background.
		developed the disease because they were obese to begin with.
		all of these.

QUESTION 9

Teen magazines could have a positive influence on adolescentbody-image and self-image if the magazines would

		focus on things teens can do rather than on what teens looklike.
		show "real" teens of all ethnic backgrounds and shapes and notteen models.
		not emphasize the "Barbie" doll look as the ideal for teens.
		all of these.

QUESTION 10

The most powerful factor(s) to impact adolescent weight lossinclude(s)

		genetics.
		the closeness of the family.
		peers.
		a and b.

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KNES 437 Lecture Notes - Lecture 4: Twin, Leptin, Twin Study

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