Human Influence on Genetics
Punnett Squares 1
Probability
Asexual vs Sexual Reproduction
Punnett Squares 2
200
Which term means the intentional reproduction of plants or animals?
selective breeding
200
What are the genotypes of the parents?
Rr
200
In horses, black (B) is the dominant color; brown (b) is the recessive white color. Cross two heterozygous black horse parents.
What is the probability that these two horses will have a child that is brown?
25% brown (bb)
200
This form of reproduction is faster, producing many offspring over a shorter period of time
asexual reproduction
200
What doe sit mean to be Homozygous?
Either both Capital Letters (BB) or both recessive (bb)
400
What is it called when scientists change the genetic code of an organism in order to obtain a desirable trait or correct a problem?
genetic engineering
400
What percentage of offspring will likely express the recessive trait?
25%
400
This black dog has the genotype of (BB) for fur color. The black dog mates and has puppies with a solid white dog.
What is the probability that this match will produce puppies that are black?
100% black puppies
400
This form of reproduction requires an organism to expend time and energy finding a mate and/or carrying offspring or producing seeds
Sexual reproduction
400
In pole beans, green pods (G) are a dominant trait, while yellow pods (g) are a recessive trait. A bean plant with a GG genotype is crossed with a second plant that has the gg genotype. If this cross produces 100 offspring, approximately how many of the offspring will have green pods?
100 green
600
A farmer wants to grow tomatoes that are more resistant to pests and have high yields. He allows two plants with these traits to sexually reproduce.
This is an example of __________.
selective breeding
600
According to this Punnett Square, what percentage of offspring are likely to be heterozygous?
50%
600
Hornless (H) in cattle is dominant over horned (h). A homozygous hornless bull is mated with a homozygous horned cow.
What are the genotypic probabilities of this cross?
100% Hh
600
This form of reproduction involves a single parent making a copy of itself either through binary fission, fragmentation, or vegetative propagation
asexual reproduction
600
In pole beans, green pods (G) are a dominant trait, while yellow pods (g) are a recessive trait. A bean plant with a (GG) genotype is crossed with a second plant that has the (gg) genotype. If this cross produces 500 offspring, approximately how many of the offspring will have yellow pods?
0 yellow
800
A doctor injects a viral package into a patient with genetic material designed to change the genetic code.
This is an example of ___________ ___________.
genetic engineering
800
What percentage of offspring are likely to be purebred dominant?
RR - 25%
800
In tomatoes, red fruit (R) is dominant over yellow fruit (r). A plant that is heterozygous for red fruit is crossed with a plant that has yellow fruit.
What are the genotypic probabilities of the offspring?
50% Rr, 50% rr
800
This form of reproduction involves the combining of genetic material from two parents, resulting in a unique offspring with the advantage of __________ ________.
genetic variation
800
If one hamster has white fur and the other parent is heterozygous with brown fur, what are the genotypic and phenotypic probabilities of a cross between these two rabbits.
50% white, bb
50% brown, Bb
1000
What did the 'Designer Babies' video call the path that humans may be going down once we start using genetic engineering to guarantee human babies are born with the traits the parents want?
slippery slope
1000
What percentage of offspring will likely take on the dominant trait?
75%
1000
Brown eyes in humans are dominant to blue eyes. A brown-eyed man, whose mother was blue-eyed, marries a brown-eyed woman whose father had blue eyes.
What is the probability that this couple will have a blue-eyed child?
25%
1000
A strawberry plant produces seeds on the fruit and can grow new plants using runners, portions that extend out several inches from the original plant, take root in the soil, and produce new plants called “daughter plants.”
What type(s) of reproduction is/are the strawberry plant capable of?
sexual and asexual reproduction
1000
If two heterozygous brown rabbits have 200 baby rabbits, about how many of the baby rabbits are likely to be brown?
150 brown