Free MCAT Test Exam Braindumps
Medical College Admission Test: Verbal Reasoning, Biological Sciences, Physical Sciences, Writing Sample Questions 387–391 (page: 78)

Updated On: 9-Feb-2026

Which option occurs as a result of inbreeding?

  1. heterozygosity increases
  2. homozygosity decreases
  3. homozygosity increases
  4. none of these

Answer(s): C

Explanation:

Inbreeding increases the chances of inheriting identical genes from parents.



The James-Lange Theory of Emotion proposes that:

  1. a person's thoughts about physiological reactions determine emotions.
  2. physiological changes have no influence on emotions.
  3. emotions cause physiological reactions.
  4. physiological changes influence emotions.

Answer(s): D

Explanation:

The named theory states that physiological changes can have an effect on one's emotions. Another theory ­ the Schachter and Singer one ­ suggests that it is our thinking about these changes that produces emotions.



According to Erik Erikson, identity formation is intense during what stage of life?

  1. early childhood
  2. early adulthood
  3. birth through 2 years
  4. adolescence

Answer(s): D

Explanation:

According to Erikson, the formation of identity is affected by many factors, but its development peaks during adolescence.



According to Piaget, which is the first stage of cognitive development?

  1. sensorimotor
  2. formal operational
  3. concrete operational
  4. preoperational

Answer(s): A

Explanation:

This stage is a period of rapid cognitive growth which occurs from 0 to 2 years. The other options are later stages.



Which stimulus is the main factor that influences circadian rhythms?

  1. pain
  2. temperature
  3. pressure
  4. light

Answer(s): D

Explanation:

Circadian rhythms are the bodily changes which follow a 24-hour cycle in response to changes in light levels.



Viewing page 78 of 164
Viewing questions 386 - 390 out of 811 questions


Post your Comments and Discuss Test Prep MCAT Test exam prep with other Community members:

AI Tutor AI Tutor 👋 I’m here to help!