Reproduction and Genetics Final Review

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Transcript Reproduction and Genetics Final Review

Topic: Final Exam Review
Aim: Let’s review reproduction and genetics.
Do Now: Let’s go over our Energy and Waves exam.
HW: Final Exam Review Ditto – Physical Science
The hydra shown below is reproducing asexually.
What percentage of the offspring’s genetic
information is the same as the genetic
information of the parent?
(1) 25% (2) 75%
(3) 50%
(4) 100%
A plant produces tiny plants around the
edges of its leaves. When these tiny plants
fall to the ground, they take root and
become new plants.
This process is an example of
(1) sexual reproduction
(2) asexual reproduction
(3) evolution
(4) extinction
Asexually produced offspring are
(1) identical to the parent
(2) different from the parent
(3) different from each other
(4) formed by two parents
Some one-celled organisms can reproduce
by the process of
(1)hormone secretion
(2) fertilization
(3) metamorphosis
(4) cell division
A broken bone heals through the process
(2) cell division
(3) mutation
(4) chemical digestion
Cancer is best described as
(1) a type of genetic engineering
(2) the merging of sex cells
(3) abnormal cell division
(4) tissue that stops growing
In animal skin tissue, cell division is
responsible for
(1) growth and repair
(2) sexual reproduction
(3) obtaining energy
(4) production of sex cells
The series of diagrams below shows a single-celled
organism and its offspring that resulted from cell
division over a period of 20 hours.
If the organisms continue to reproduce asexually at
this same rate, how many organisms will there be
after 30 hours?
(1) 6
(2) 8 (3) 7
(4) 16
Naturally occurring variations within a
species are mainly the result of mutations
(1) sexual reproduction
(2) dynamic equilibrium
(3) metabolism
(4) camouflage
The diagram below shows information about the
reproduction and development of a rabbit.
Which letter in the diagram
represents fertilization?
(3) C
(4) D
The diagram shows four stages in the development of
a human after fertilization.
Between stages A and D, which process must occur?
(1) mutation
(3) cell division
(2) sexual reproduction
(4) extinction
Which sequence of development is correct?
(1) fertilized egg → tissues → organ systems → organs
(2) fertilized egg → organ systems → organs → tissues
(3) fertilized egg → organs → tissues → organ systems
(4) fertilized egg → tissues → organs → organ systems
Which sequence represents the order of development
for many plants?
(1) seed develops inside fruit → seed is dispersed →
seed germinates → plant grows
(2) seed is dispersed → seed develops inside fruit →
seed germinates → plant grows
(3) seed germinates → plant grows → seed is
dispersed → seed develops inside fruit
(4) seed is dispersed → plant grows → seed
germinates → seed develops inside fruit
Which statement describes a method of sexual
reproduction that occurs in plants?
(1) Stem cuttings are placed in water and grow
(2) Seeds are produced from the flower of the
(3) Underground stems from a plant grow into
new plants.
(4) A leaf falls to the soil, develops roots, and
The diagram below shows a cross section of a
bean seed.
The function of part X in the bean seed is to
(1) provide protection for the embryo
(2) provide nutrients for the embryo
(3) prevent mutations in the plant
(4) fight off infections in the plant.
When do organs and organ systems
begin to develop in humans?
(1)before fertilization
(2) during childhood
(2) before birth
(4) during adulthood
What are produced in both the male and
female reproductive systems in humans?
(2) fertilized eggs
(3) nutrients
(4) sex cells
During which process does a caterpillar
become a butterfly?
(1) fertilization
(2) metamorphosis
(3) asexual reproduction
(4) biological adaptation
Which process is represented by the diagram
(1) asexual reproduction
(2) ecological succession
(3) photosynthesis
(4) metamorphosis
Young frogs do not resemble adult frogs.
Which term is given to this pattern of
development in frogs?
(1) asexual reproduction
(2) cloning
(3) metamorphosis
(4) biological adaptation
In living things, traits are passed on from
one generation to the next by the
transfer of
(1) blood
(2) Calories
(3) minerals
(4) DNA
Which process involves choosing certain
organisms to reproduce with one another in
order to pass on specific, desirable traits to their
(1) selective breeding
(2) asexual reproduction
(3) resource acquisition
(4) natural selection
A Punnett square is shown below. The dominant
trait is represented by R. The recessive trait is
represented by r.
What percentage of the offspring will most
likely show the dominant trait?
(1) 25% (2) 75% (3) 50% (4) 100%
Many cells have a nucleus that contains
chromosomes. These chromosomes carry genes that
are composed of
(1) hormones
(2) DNA molecules
(3) minerals and water
(4) undigested food molecules
What model is used to show the pattern of
traits that are passed from one generation
to the next in a family?
(1) pedigree chart
(2) dichotomous key
(3) energy pyramid
(4) line graph
What are genes composed of?
(2) cells
(3) DNA
(4) traits
An organism is born with a genetic
abnormality not present in any of its
ancestors. This abnormality is most likely
the result of
(2) mutation
(3) competition
(4) respiration
In humans, a trait can be determined by
one pair or many pairs of
(2) cells
(3) microbes
(4) organs
The drawing below represents a pair of
The area labeled “bands” shows the location of
(1) egg cells
(2) sperm cells
(3) reproductive hormones
(4) specific genes
Compared to the amount of hereditary
information in a human body cell, how
much hereditary information is contained
in a human sex cell?
(1) one-quarter the amount
(2) one-half the amount
(3) the same amount
(4) twice the amount
Base your answers to questions 34 through 36 on
the diagram below and on your knowledge of science.
The diagram shows a model of human inheritance.
What is this model used to
(1) the possibility of having twins
(2) the probability of a trait being
passed on
(3) the rate of mutation
(4) the production of sex cells
What is the genetic makeup of the parents?
(1) AA and aa
(2) AA and AA
(3) Aa and Aa
(4) aa and aa
Why will Aa individuals have a straight hairline
rather than a peaked hairline?
(1) The peaked hairline occurs only in females.
(2) The peaked hairline is a mutation.
(3) The straight hairline is recessive.
(4) The straight hairline is dominant.
A scientist crosses two different varieties of
corn to produce a single variety that has
traits from both parents. This technique is
an example of
(1) competition
(2) natural selection
(3) selective breeding
(4) ecological succession
A research team wanted to produce a smaller
variety of German shepherd dogs. They mated
the smallest dogs from different litters for
several generations. This is an example of which
(1) extinction
(2) selective breeding
(3) mutation
(4) natural selection