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G E N E S

What type of gene causes traits that are less

likely to occur?

WHAT IS A RECESSIVE GENE

Which of these is due entirely to inheritance

in humans?a. Eye color

b. Reading skillc. Endurance

d. Broken bones

B- EYE COLOR

Calculate the number of cells that would exist if a cell underwent mitosis every 10 minutes for 1

hour.

What would be 64 cellsStart with 1

First 10 minutes 2Second 10 minutes 4Third 10 minutes 8

Fourth 10 minutes 16Fifth 10 minutes 32

Sixth 10 minutes (an hour) 64

Mendel’s early work with pea plants demonstrated a

significant genetic discovery. The crossing of homozygous

tall pea plants with homozygous short pea plants always resulted in tall plants and demonstrated that tallness in pea plants is a

trait that is:

What is Dominant

A lizard re-growing a lost tail is an example of what?

What is Regeneration

New yeast grows on a parent yeast organism, and breaks off when it is ready to form a new

separate organism.

What type of reproduction is this an

example of?

What is Asexual Reproduction

Which of the following traits of a dog is inherited from the

parents?a. The presence of fleas in its fur

b. The color of its furc. The ability to sit up and beg

d. The habit of barking to go outside

What is b- the color of its fur

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 B blood type are dominant. The

allele for type O blood is recessive. What blood type will a person if he inherits an allele for type A and an allele for type

O?

What is type A

The chances of developing cancer, diabetes, or sickle-cell anemia are higher if a family member also has the disorder

because they are -a. Highly infectious

b. Passed through blood contactc. Genetically based

d. Related to diet

What is C- genetically based

Why is DNA essential to living organisms?

What is it carries the genetic code

What type of gene causes traits that are more likely

to occur?

What is a dominant gene

What are the possible genotypes of the

offspring from a cross between two people with genotypes Bb?

What are X

B b

B

b

BB Bb

Bb bb

When a cell of a plant stem divides, each new cell has how

many chromosomes?

What is the same number of chromosomes as the parent

cell

The physical expression of a genetic trait is called what?

What is it’s phenotype

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?

What is the baby most likely will have bushy eyebrows

I have green eyes and you might have brown eyes. Different eye

color is caused by what?

What is different combinations of genes for eye color

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 percentages of offspring will also have purple flowers?

What is 75%

The allele for black hair, B is dominant to orange tabby color,

b, in cats. Based upon the Punnett square below, what did

the parents look like in this genetic cross?

Bb bb

Bb bb

What is one black parent Bb and one tabby parent bb

How much genetic material is found in a cloned cell as

compared to the original cell?

What is the same amount?

Brown eyes are dominant to green/blue eyes. Both of my

parents had brown eyes, but I had green eyes. What is the BEST

explanation for why I have green eyes?

What is both of my parents carried a gene for green/blue eyes

Bb

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?

What is poodles are the result of people selectively breeding them

for specific taits

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?

What is 0%

B B B BB BB

b Bb Bb

What is true of the offspring of organisms that reproduce

sexually?

What is they have some genetic traits of both parents, but are not

exactly like either.

The process of an organism passing on its traits to its offspring is called what?

What is heredity

If you selectively breed two German Shepherds that are

homozygous dominant for a trait. The resulting offspring will be

examples of what?

What is a purebred