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24 Cards in this Set
- Front
- Back
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It is impossible to meet all your needs by yourself.
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TRUE
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When will traits carried by recessive genes be expressed?
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only when 2(two) recessive genes are paired
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Artficially changed traits can be passed to children.
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False
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What indicates that a person is not mature?
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concern that other people meet their needs
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When does aging begin?
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At birth
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During what stage does puberty occur?
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adolesence
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Which gland secretes a growth hormone?
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pititary gland
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What are the threadlike structures made up of DNA?
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Chromosomes
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What are two secondary sex characteristics for a male and a female.
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male 1. facial hair
2. voice changes Female 1. breast development 2.menstruation |
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Reproductive cells produced by the male are called
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sperm cells
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Fertilization occurs when the sperm cell joins with an ovum.
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True
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The most critical period during pregnancy is
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0-3 months
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Human cells contain 26 chromosomes.
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False
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When a person has reached full development, he or she has reached
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maturity
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What is the name given to an unborn baby after the second month?
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FETUS
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________will not harm the embryo and fetus.
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Calcium
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All traits are carried by one pair of genes.
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False
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How many daughter cells are produced during meiosis?
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There are 4 daughter cells
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What are two secondary sex characteristics for a male and a female.
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male 1. facial hair
2. voice changes |
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What characteristics is not inherited?
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bleached blonde hair
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What are two reasons to have a job?
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make money
being responsible |
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The testes in a male body secrete a hormone called
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testosterone
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Meiosis is cell division of _________ cells.
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4(four)
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At what age do most girls usually go through puberty?
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11-14
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