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Questions and Answers
What does heredity mainly refer to in human development?
What is the female sex cell called?
What term describes the fertilized egg cell?
Which of the following pairs indicates the sex chromosomes of a female offspring?
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During which stage of human development does the zygote begin to develop into an embryo?
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Which term best describes a basic unit of heredity?
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What is the approximate age range for the early adulthood stage of human development?
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How long does the late childhood stage last?
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Study Notes
Development of an Individual
- Heredity (nature): Traits passed from parents to offspring
- Environment (nurture): All experiences from conception to death
Fertilization
- The meeting of the female egg cell and male sperm cell
Gonads
- Reproductive organs where sex cells develop
Sperm cells
- Male sex cells (spermatozoa) produced in the testes
Egg cells
- Female sex cells (ova) produced in the ovaries
Zygote
- Fertilized egg cell containing hereditary potential from both parents
Chromosomes
- Thread-like structures within the nucleus of cells
- Contain genes
- Females have two X chromosomes
- Males have one X and one Y chromosome
- Sex of offspring determined by father's chromosome
Gene
- Basic unit of heredity
- Small particle within a string-like formation
- Contains DNA
Deoxyribonucleic Acid (DNA)
- Code of heredity carrying information about an organism
- Programs inherited traits
Maturation
- Unfolding of inherent genetic traits
Stages of Human Development
-
Pre-natal Period: Conception to birth
- Germinal stage
- Embryonic stage
- Fetal stage
- Infancy: Birth to end of second week
- Babyhood: End of second week to end of the second year
- Early Childhood (Preschool Age): 2-6 years old
- Late Childhood (Elementary Age): 6-10 years old
- Puberty (Preadolescence): 12-13 or 14 years
- Adolescence: 13 or 14-18 years
- Early Adulthood: 18-40 years
- Middle Age: 40-60 years
- Old Age: 60 years to death
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Description
Test your knowledge on the key concepts of heredity, fertilization, and genetic development. This quiz covers essential terms like chromosomes, genes, and the processes involved in reproduction. Explore how nature and nurture shape individual traits.
