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HOSA HUMAN GROWTH AND DEVELOPMENT EXAM QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+ GRADE
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HOSA HUMAN GROWTH AND DEVELOPMENT EXAM 190 QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+ GRADE
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HOSA HUMAN GROWTH AND DEVELOPMENT EXAM 2024-2025190 QUESTIONS AND ANSWERS 100 % PASS SOLUTION A+
GRADE
How many pairs of chromosomes are in DNA? - ANSWER--23 pairs
What is the function of chromosomes? - ANSWER--They determine hereditary chromosomes.
refers to body growth and includes height and weight - ANSWER--physical
What are chromosomal diseases? What are the categories? - ANSWER--This disease is a result
of chromosomal breakage, abnormal chromosome, or a missing chromosome. They two
categories are trisomy and monosomy.
What are examples of nonfatal chromosomal diseases? - ANSWER--Down syndrome and Turner
syndrome
What happens when genes mutate? - ANSWER--They normally become the basis for some form
of disease.
What are single-gene diseases? - ANSWER--This results from an individual mutant gene and
may cause a failure to create something necessary.
What are some examples of single-gene diseases? - ANSWER--Cystic Fibrosis, Hemophilia,
Albinism, Huntingtons disease
What are the levels in the hierarchy of human needs and who developed this? - ANSWER--
Abram Maslow was responsible for developing this.
1. Food, Shelter, and bodily comfort
2. Safety and Security
3. Feel loved and a sense of belonging
4. Self esteem and control
5. Live up to ones potential
,What is genetics? - ANSWER--An area of biology that deals with the passing of genes from
parents to children.
What is gene therapy? - ANSWER--The treatment of single-cell disease by replacing the mutant
gene.
What are genetic engineering and recombinant DNA? - ANSWER--Recombinant DNA is the
imitation and artificial manipulation of DNA. With recombinant DNA, scientist hope to replace
defective genes with copies of healthy genes.
How long does prenatal development last? - ANSWER--38 weeks from conception to birth
What happens during the zygote period? - ANSWER--The is during the first 2 weeks of
pregnancy and is when the zygote travels from the Fallopian tube to the uterus and implants
itself in the uterine wall, here is where the amnion forms. Near the end of the 2 weeks the
placenta is developed.
What happens during the embryonic period? - ANSWER--This period is from the 2nd weeks to
the 8th week. Three layers of cells develop (1. Ectoderm Layer: Skin and nervous system, 2.
Mesoderm: Muscle, skeleton, cardiovascular system, and other organs, 3. Endoderm:
Digestive system, lungs, urinary tract, and glands.). Heart begins to pump blood. During the
second half of this period facial features, arms, legs, fingers, and toes begin to form.
What is premature birth? - ANSWER--Babies born 3 weeks or more early
What is SIDs - ANSWER--When an infant dies during sleep. There is no cure or cure.
What ages do infants and toddlers refer to? - ANSWER--Infancy is first year and toddler is
second
, What physical developments occur during infancy? - ANSWER--Babies settle into sleeping
patterns, hold head up, roll over,reach for things, hearing improve, crawl, walk, make sounds
What physical developments occur during toddlerhood? - ANSWER--Gain weight and height,
run, jump, climb, learn to scribble and balance
What intellectual developments occur during infancy? - ANSWER--Imitate facial expressions,
repeat actions the bring pleasure, recognize people, make sounds, begin to point at objects
What intellectual developments occur during toddlerhood? - ANSWER-- Experiment repeatedly
with objects, play make believe, imitate more complex actions, say first words, increase
vocabulary to 200 words before 2, begin to form sentences
What happens during the fetal period? - ANSWER--This is during the 9th week to birth. During
this period, organs, muscles, and the nervous system begins to organize. Lungs begin to
expand and contract to simulate breathing. External genitals are distinguishable. Fingernails,
toenails, and eyelids form. After 18 weeks babies movement can be felt by the mother. After
20 weeks baby can hear and react to sound. After 24 weeks brain neurons are developed.
After 25-38 weeks the cerebral cortex continues to develop and fetus gains a layer of fat,
ultimately adding 5 pounds to the babies weight. The fetus receives antibodies from the
mothers blood to protect it from illness until its own immune system forms.
What is the age of viability? - ANSWER--When a fetus has a chance to live outside the womb
and survive. Normally from 25-38 weeks.
What are teratogens? What are some examples? - ANSWER--Environmental substances that
may cause damage during prenatal development. Examples: medications, drugs, alcohol, and
pollution
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