genetics practice questions. standard 2a: ___is the production of offspring by one parent without...
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Standard 2a: ___is the production of offspring by one parent without the joining of a sperm or egg.
A Sexual production
B Asexual reproductionC DNA D Viral
Standard 2a: ___is the production of offspring by one parent without the joining of a sperm or egg.
Answer:B Asexual
reproduction
Standard 2a: ______ is a type of asexual reproduction in which an organism splits
into two organisms.
A binary fission B regeneration
C twining D budding
Standard 2a: ______ is a type of asexual reproduction in which an organism splits
into two organisms.
Answer:A binary fission
Standard 2a: __ ____ is a type of asexual reproduction in which a new organism forms on a parent organism (for example yeast or hydra).
A binary fission B regeneration
C twining D budding
Standard 2a: __ ____ is a type of asexual reproduction in which a new organism forms on a parent organism (for example yeast or hydra).
Answer:D budding
Standard 2a: What are some advantages of asexual reproduction?
A Lack of genetic diversity, requires two parents, and takes less time to reproduce.
B Lack of genetic diversity, only requires one parent, takes time to reproduce.
C Requires two parents, already adapted to environment, takes less time to reproduce.
D Requires one parent, already adapted to environment, takes less time to reproduce.
Standard 2a: What are some advantages of asexual reproduction?
Answer:D Requires one parent,
already adapted to environment, takes less time to reproduce.
Standard 2a: The process by which traits pass from parents to offspring is called
A spontaneous generation.
B cell movement.C heredity.D specialization.
Standard 2a: The process by which traits pass from parents to offspring is called
Answer:C heredity.
Standard 2b: Which type of reproduction results in offspring that have some genetic information in common with each parent?
A cloningB asexualC buddingD sexual
Standard 2b: Which type of reproduction results in offspring that have some genetic information in common with each parent?
Answer:D sexual
Standard 2b: When sex cells combine to produce offspring, the offspring gets
A all of its chromosomes from one parent cell.B none of its chromosomes from either parent cell.C 50 percent of its chromosomes from each parent cell.D 25 percent of its chromosomes from one parent cell and 75 percent of its chromosomes from the other parent cell.
Standard 2b: When sex cells combine to produce offspring, the offspring gets
Answer:
C 50 percent of its chromosomes from each parent cell.
Standard 2c: Genes determine whether you have dimples, what color eyes you have, and even your ability to roll your tongue. What is the role of a gene in inheritance?
A The gene contains chromosomes that show an organism’s traits.
B The gene gets messages from its cell about showing certain traits.
C The gene has nerves that send messages to the brain, controlling specific traits.
D The gene is a section of DNA that controls a trait that the organism inherits.
Standard 2c: Genes determine whether you have dimples, what color eyes you have, and even your ability to roll your tongue. What is the role of a gene in inheritance?
Answer:D The gene is a section of
DNA that controls a trait that the organism inherits.
Standard 2c: Many traits such as height and hair color that include a wide range of phenotypes are controlled by which
of the following?
A only dominant genes
B only recessive genes
C many genesD sex-linked genes
Standard 2c: Many traits such as height and hair color that include a wide range of phenotypes are controlled by which
of the following?
Answer:C many genes
Standard 2c: Which is an example of a human trait that is controlled by a single gene?
A ability to readB attached or free
earlobesC eye colorD skin color
Standard 2c: Which is an example of a human trait that is controlled by a single gene?
Answer:B attached or free
earlobes
Standard 2d: Scientists call an organism that has two different alleles for a trait
A a hybrid.B homozygous.C purebred.D a factor.
Standard 2d: Scientists call an organism that has two different alleles for a trait
Answer:A a hybrid.
Blood type is determined by a single gene with three alleles. The chart shows which combinations of alleles result in each blood type. A baby
has blood type AB. What can you infer about the baby’s parents?
A Neither has type AB
blood.B Both have type AB
blood.C One has type A blood,
and the other has type B blood.
D Neither has type O blood.