REPRODUCTION
VOCABULARY
WORD PROBLEMS
PUNNETT SQUARES
BREEDING & GENETICS
100
A lizard regrowing its tail.
What is an example of Regeneration?
100
The physical expression of a genetic trait is called:
A phenotype
100
In humans, having bushy eyebrows is a trait that is dominant over having thin eyebrows. Two parents with bushy eyebrows are going to have a baby. What can be predicted about how the baby's eyebrows will develop?
The baby will most likely have bushy eyebrows.
100
If you cross-pollinate a tall pea plant with a short pea plant, the offspring would be:
Heterozygous
100
The chances of developing cancer, diabetes, or sickle-cell anemia are higher if a family member also has the disorder because they are ___________ __________.
genetically based
200
New yeast grows on a parent yeast organism, and breaks off when it is ready to form a new, separate organism.
What is an example of Asexual Reproduction?
200
What type of gene causes traits that are less likely to occur?
A recessive gene
200
Ken owns a peacock farm. One day, a large batch of eggs hatch and Ken discovers that a few of the chicks are white instead of blue. White chicks can be sold for $100 each, instead of the $50 that people pay for blue chicks. If Ken wants to raise more white peacocks in order to make more money, what should he do?
He should isolate the white peacocks and allow them only to breed with each other.
200
Joey has blue eyes, while Diane has brown eyes. What causes them to have different eye colors?
They have different combinations of the genes for eye color.
200
How much genetic material is found in a cloned cell as compared to the original cell?
The same amount
300
Single-celled organisms can reproduce and create cells exactly like themselves without combining genes from two different parent cells. When they do this, they use a type of
asexual reproduction
300
What type of gene causes traits that are more likely to occur?
A dominant gene
300
George Washington XIV decides that he likes a particular cherry tree in his yard. He makes a number of cuttings from this tall, white-flowered parent tree. The cuttings grow up into new cherry trees. What is true about the offspring cherry trees produced from cuttings?
The offspring trees are clones of the parent tree and should look very similar.
300
Each form of a gene is called an allele. The alleles for human blood type are A, B, and O. Both the allele for type A blood and type B blood are dominant. The allele for type O blood is recessive. What blood type will a person have if he inherits an allele for type A and an allele for type O?
Type A Blood
300
What would be an example of selective breeding?
A peahen choosing to mate with peacock that has the largest, most impressive tail
400
They have some genetic traits of both parents, but are not exactly like either.
What is true of the offspring of organisms that reproduce sexually?
400
The two letter code of a genetic trait is called
A genotype
400
Mike and his three brothers all have brown hair. Mike's father has brown hair, too. Mike's mother, however, is the only family member that has red hair color. What conclusion can you draw about the gene for hair color?
The gene for brown hair is dominant over the gene for red hair.
400
In pea plants, purple flowers are dominant to white flowers. Suppose a purple-flowered plant with genotype Pp is crossed with another purple-flowered plant with the same Pp genotype. What percentage of offspring will also have purple flowers?
75%
400
Frank selectively breeds two German Shepherds that are homozygous dominant for a trait. The resulting offspring will be examples of:
Purebred
500
A scientist predicts that a community of organisms reproduces sexually. How can she prove her hypothesis?
She can look for genetic variation within the community.
500
A tool used to determine the probably that a trait will be passed on to offspring is
A Punnett Square
500
Brown eyes are dominant to blue eyes. Both of Christine's parents have brown eyes, but Christine has blue eyes. What is the BEST explanation for why Christine has blue eyes?
Both of her parents carry the gene for blue eyes.
500
What are the chances of having homozygous recessive offspring if the father is homozygous dominant for brown hair and the mother is heterozygous for brown hair?
0%
500
Poodles, like all dog breeds, are so closely related to wolves that they can breed with them. What is the best explanation for why wolves and poodles do not look alike, despite being extremely close relatives?
Poodles are the result of people selectively breeding them for specific traits.
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