Toggle Navigation
Games
Blog
News
Class PIN
Join for Free
Sign in
Toggle Navigation
Games
PIN
Join for Free
Blog
Pricing
News
Contact us
Help center
Sign in
Study
Genetics Unit 3
0
%
0
0
0
Back
Restart
What is another name for homozygous?
purebred; true bred
Oops!
Okay!
Features influenced by the environment, choices you make, scars from injuries, things you learn, habits you develop over your life time.
acquired traits
Oops!
Okay!
Genes are located...
on chromosomes
Oops!
Okay!
Physical appearance of an organism.
phenotype
Oops!
Okay!
Another name for heterozygous.
hybrid; carrier
Oops!
Okay!
List the 3 possible genotypes. (Use the letter T) (in order)
TT, Tt, tt
Oops!
Okay!
Where is your genetic material found?
inside the nucleus of your cells; your unique DNA
Oops!
Okay!
Using the letter "L", what is the genotype of a recessive organism?
ll
Oops!
Okay!
An example of genetic engineering...
selective breeding (artificial selection)
Oops!
Okay!
Written with capital letters
dominant traits
Oops!
Okay!
What did we learn from Gregor Mendel's experiments with pea plants specifically...
tall stem length pea plants were dominant and hide short recessive pea plant stem length
Oops!
Okay!
Segments of DNA are called?
genes
Oops!
Okay!
Always shows up when present.
dominant traits
Oops!
Okay!
How do we get the greatest genetic diversity or variations?
Through sexual reproduction- a combination of genes from Mom & Dad; we do NOT all look alike
Oops!
Okay!
How can 2 parents that show the dominant traits have offspring with the recessive trait (example: eye color- parents phenotype brown eyes)
Both parents must be carriers (Bb x Bb); heterozygous for there to be a 25% chance of the offspring having blue eyes (phenotype)
Oops!
Okay!
Different forms of a GENE.
allele
Oops!
Okay!
Define selective breeding...purpose and who is in control. Give an example.
Selective breeding- humans are choosing the traits that they desire to see in the offspring of an organism. (Purebred dogs)
Oops!
Okay!
Two different alleles for a gene means...
heterozygous
Oops!
Okay!
Written with lowercase letters
recessive traits
Oops!
Okay!
Genetic makeup
genotype
Oops!
Okay!
Give the example of a genotype for a hybrid organism using the letter "R".
Rr
Oops!
Okay!
Name 2 advantages to asexual reproduction.
fast process, no mate needed, reproduce more often, easy
Oops!
Okay!
Natural traits that you are born with; passed fown from your parents and are coded for in your DNA.
inherited traits
Oops!
Okay!
What is the phenotype of a parent that is hybrid when brown eyes are dominant over blue eyes?
Brown eyes (capital letter is present Bb- see the dominant trait)
Oops!
Okay!
List 1 disadvantage to sexual reproduction.
slow process, must find a mate, longer for birth of offspring, reproduce less often
Oops!
Okay!
How many chromosomes do you inherit from each parent?
23; 46 total; 1/2 from Mom and 1/2 from Dad
Oops!
Okay!
Father of Genetics
Gregor Mendel
Oops!
Okay!
A form of genetic engineering is cloning...how much genetic material is in the original and the clone.
EXACT same
Oops!
Okay!
Give an example of the possible genotypes for a dominant organism using the letter B.
BB, Bb
Oops!
Okay!
The passing of traits from parent to offspring through sexual reproduction is...
heredity
Oops!
Okay!
Explain why a child may look more like one parent over the other.
One parents may possess the majority of the dominant traits. Therefore you are more likely to favor that parent.
Oops!
Okay!
Your experience on this site will be improved by allowing cookies.
Allow cookies