Which characteristic of pea plants were important in their selection as Mendel's research organism?

What are alleles?

In what kind of classic Mendelian cross would you expect to find a ratio of 9:3:3:1 among the F₂ offspring?

Haiti is settled by peoples of both African and European ancestry. A young couple, both with mixed ancestry, marry and have several children. The children vary widely in the amount of skin melanin production, with one child being lighter than both parents, and one being darker. The simple explanation for this is

Women with X-linked disorders always pass the genes for the disorder to ________, while men with X-linked disorders always pass the genes for the disorder to ________.

In the Watson and Crick model of DNA, the "steps" of the ladder are composed of

Which of the following statements about DNA replication is NOT correct?

During DNA replication, the enzyme ________, catalyzes the elongation of new DNA by adding, to the 3' end of the previous nucleotide, new nucleotides that are complementary to a DNA template.

DNA replication is considered semiconservative because.

A (an) ________ is a group of three bases on tRNA that is complementary to a specific mRNA codon.

The correct sequence of events in translation is

For translation to take place, which of the following would NOT be required to be present?

During the elongation of a polypeptide chain, ________ occurs when the mRNA moves to the next site on the ribosome to read the next codon.

What is a trait that will only exhibit when the dominant allele is not present.

If you cross a white flower (pp) with a purple flower (PP), the possible genotypes of the offspring are

If you crossed a PP (purple) with a pp (white), what would the phenotypes be?

The organism's appearance is known as its

If you cross two rabbits that have the genotype Bb, how many possible genotypes can be found in the offspring?

_____________ describes a trait that covers over, or masks another form of that trait.

_________________ describes a trait that is covered over, or masked by another form of that trait.

The letters representing the phenotype is called

Different forms of a gene are called

Two of the same alleles of the gene for a certain trait

Two different alleles of the gen for a certain trait

In a pedigree, what do circles represent?

In a pedigree, when a circle of square is halfway shaded, is it

Which genotype is hetrozygous?

Which genotype is homozygous dominant?

Which is NOT an example of a phenotype?

Which genotype is homozygous recessive?

The brown eye trait is dominant over blue eyes. Which of the following genotypes best represents the phenotype for blue eyes?

In the Punnett square, White petal color ( W ) is dominant over purple petal color ( w ). Of the four offspring, how many will have the white phenotype?

Which of the following is true?

If green (G) is dominant over purple (g), then what is the genotype for this organism?

The above pedigree is most consistent with the observation that Huntington's Disease is —

Traits controlled by two or more genes from different chromosomes

In humans, cystic fibrosis is a recessive genetic disorder that results in mucus clogging the lungs. If both parents are genetically heterozygous for cystic fibrosis, then what are their chances of having a child who DOES NOT HAVE the disease?  (Hint: draw a Punnett Square on a piece of scratch paper to help you answer the question.)

In humans, the trait for dimples is dominant over no dimples. If a heterozygous parent is crossed with a homozygous recessive parent, then what is the probability this couple will have offspring with dimples?  (Hint: draw a Punnett Square on a piece of scratch paper to help you answer the question.)

In a classic Mendelian cross, a homozygous plant that produces purple fruit is crossed with a homozygous plant that produces blue fruit. The seeds of all the offspring are purple. Why?  (Hint: draw a Punnett Square on a piece of scratch paper to help you answer the question.)

Albinism (b), is recessive to normal brown coloration (B). When an albino female was crossed with a brown male, they produced 2 offspring that had brown coloring and 2 that were albino. What was the genotype of the male parent?

Looking at the blood donation chart from our Blood Typing Lab, who is considered the "universal donor"?

If a person with O blood type produces offspring with a person heterozygous for A blood, then what percentage of their offspring will be type O?  (HINT: draw a punnett square to help solve the problem)

Which blood type would not be possible for children of a Type AB mother & a Type B father?  (Hint: draw a Punnett Square on a piece of scratch paper to help you answer the question.)

Different forms of a gene are called

A man who is heterozygous for type B blood and a woman who is homozygous for type A. What are the chances that their first child will have type AB blood?

In cows there is this color called roan. When you look at the hair closely you can see both red and white hairs. What complex inheritance pattern represents this trait?

Orville Oompa is heterozygous for type A blood. He wants to have kids that have type B blood. Is it possible for this to happen? If so, which genotype would his wife have to be?

A gardener decides she wants to have pink flowers for valentines day. Pink is a color that you get when you mix red and white. What cross will produce the most pink-flowered plants?

In cattle roan is a color produced when a cow has BOTH RED AND WHITE hairs. Orville Oompa has 25 female cows on his farm, but decides he wants the next generation of cattle to be all red. He goes to his neighbor and purchases a red bull (male cow), and brings it to his farm. Orville Oompa crosses the red male with with only the roan females, and 20 new calves are produced. Of those 20 offspring, how many could orville expect to be red based on probabilities?

A trait that is located on the X chromosome is called

A trait that is controlled by more than one gene is called

A trait in which a third phenotype appears that is always a blend of the parental phenotypes is called

A trait in which a third phenotype appears which includes both parental phenotypes (neither is lost) is called

A trait that has more than two alleles available per gene is called

Disorder: Colorblindness (X-linked)

Alleles: X^B, X^b

Dominant form of trait (B): Normal vision (not colorblind)

Recessive form of trait (b): person is colorblind

What is the genotype of a colorblind female?

Disorder: Colorblindness (X-linked)

Alleles: X^B, X^b

Dominant form of trait (B): Normal vision (not colorblind)

Recessive form of trait (b): person is colorblind

What is the genotype of a colorblind male?

Disorder: Hemophilia (X-linked)

Alleles: X^H, X^h

Dominant form of trait (H): Normal

Recessive form of trait (h): person has hemophilia

A phenotypically normal woman has phenotypically normal parents. However, she has a hemophilic brother. What are her chances of being a carrier for hemophilia?

A woman with type B blood has two brothers with type O blood and one sister with type A blood. What are their parents’ genotypes? Use a Punnett square to show your work.

Which type of inheritance patterns does blood type demonstrate?

One of Mendel's laws that states that two alleles for each trait during meiosis.

One of Mendel's that states that the random distribution of alleles occurs during genetic formation.

Which of the following organisms is a viviparous?

What type of asexual reproduction is hydra?

Starfish exhibit an asexual mode of reproduction through ________.

A process where the female will deposit thousands of eggs, and the male swims

over them to release sperm.

It is a natural form of asexual reproduction in which embryos develop in the absence of fertilization.

What is the first stage in the life cycle of an animal?

Which living thing is in its adult stage?

Which pair contains an adult animal with its offspring?

Chickens are birds. Which of these describes the first stage in a chicken's life cycle?

The picture shows a stage in the life cycle of many animals. Which kind of animal can have this stage in its life cycle?

If a fox eats a young mole, which stage of the mole's life cycle will not occur?

The _______ stage follows the birth stage in an animal's life cycle.

All animals end their life cycles with _______.

What is the life cycle stage for this image?

What is the life cycle stage for this image?

What is the life cycle stage for this image?

The following are processes of development according to Western literature EXCEPT

Changes in one's sleep-wake cycle and metabolism are under which developmental process?

Nature vs nurture refers to...

Gradual changes in size, shape, and function during an organism's life that translate its genetic potentials (genotype) into functioning mature systems (phenotype). It includes growth but not repetitive chemical changes (metabolism) or changes over more than one lifetime (evolution).

The peak-bone producing years.

Which theory of child development proposes that systems and interrelationships that surround a child affect all aspects of child's development?

What are the 3 primary areas of focus in child development?

Poverty, malnutrition, and a lack of adequate medical care are examples of