What is a mutation?

D.N.AD.N.AObjective: SWBAT review for the Unit 4 Basic Unit of Life Quest Objective: SWBAT review for the Unit 4 Basic Unit of Life Quest

IOT obtain a mastery of 80% or above! IOT obtain a mastery of 80% or above!

What is a mutation?

All our cells contain a protein called P53 which controls cell division. When an individual has cancer, this protein stops working. Explain what occurs when an individual develops cancer.

A change in the DNA sequence (affects genetic code!)A change in the DNA sequence (affects genetic code!)

Cancer occurs when cells lose regulation of MITOSIS and cells begin to divide uncontrollably

Cancer occurs when cells lose regulation of MITOSIS and cells begin to divide uncontrollably

ANNOUNCEMENTSANNOUNCEMENTS

Unit 4 Basic Unit of Life Quest 3 is on Friday!– DNA structure/function– Mitosis– Asexual Reproduction– Cancer

HW: Complete Review Packet

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Take out your Unit 4 Review Packet

We will play jeopardy once the bell rings

http://www.jeopardyinfo.com/JeopardyTickets.htm

http://www.jeopardyinfo.com/JeopardyTickets.htm

RULESRULES

2 TeamsMs. Nakamura will pick out a questionEach person will write their answer on their

white board (NO CHEATING)However many people in each team answer

answer the question correctly, will get a point!

JeopardyJeopardyGenetic Genetic

Key Key TermsTerms

Punnett Punnett SquaresSquares

ProbabiliProbabilityty

Sex-Linked Sex-Linked TraitsTraits PedigreesPedigrees

$100 $100 $100 $100 $100

$200 $200 $200 $200 $200

$300 $300 $300 $300 $300

$400 $400 $400 $400 $400

$500 $500 $500 $500 $500

FINAL JEOPARDY

Genetic Key Genetic Key TermsTerms

$500Answer

Genetic Key Terms Genetic Key Terms for $500for $500

Question

Vocabulary term for genetic trait

QuestionQuestion

Selections

What is genotype?


$400Answer

Question

Genetic Key Terms for Genetic Key Terms for $400$400

Vocabulary term for physical trait?

QuestionQuestion

What is phenotype?

Selections


$300Answer

Question

DNA Structure for DNA Structure for $300$300

In order to exhibit the dominate trait, the genotype must be?

QuestionQuestion

What is homozygous dominant /

heterozygous?

Selections


$200Answer

In order for the recessive trait to be

displayed, what must the genotype be?

Question

Genetic Key Terms for for $200$200

QuestionQuestion

What is homozygous recessive?

Selections


$100Answer

The alternative forms of a gene are called?

Question

Genetic Key Terms for for $100$100

QuestionQuestion

What are allelesSelections

Punnett SquaresPunnett Squares

$500Answer

Punnett Squaresfor Punnett Squaresfor $500$500

In fruit flies, R eyes (R), are dominant over white eyes (r). In a cross between two red-eyed fruit flies, approximately

25% of offspring had white eyes. These were the most likely genotypes of the

parents?

Question

QuestionQuestionWhat are Rr and Rr?

Selections

RR Rr

Rr rr

R

R

r

r


$400Answer

In mice, the allele for Black eyes (B) is dominant; the allele for red eyes (b) is recessive. A scientist crossed a homozygous black-eyed mouse with a

red-eyed mouse. What would be the expected genotypes of this cross?

Question

DNA Replication for DNA Replication for $400$400

Punnett SquaresPunnett SquaresWhat is Bb?

Selections

Bb Bb

Bb Bb

B B

b

b


$300Answer

In one plant, the allele for long stems (L) is dominant; the allele for short stems (l) is

recessive. A scientist crossed a heterozygous long-stemmed plant with a short-stemmed plant.

What would be the expected genotypes of the cross?

Question

Punnett Squares for for $300$300

QuestionQuestionWhat is Ll and ll?

Stions

Ll ll

Ll ll

L

l

l

l


$200Answer

In horses, the allele for straight hair (H) is dominant to curly hair (h).

What are the genotypes of the parents that will produce offspring

with curly hair?

Question

Punnett Squares for for $200$200

QuestionQuestionWhat is Hr and Hr

(both heterozygous)?

Selections

HH Hh

Hh hh

H

H

h

h


$100Answer

In this punnett square, which of the following is true about the offspring?

A.Half are short

B.All are short

C.Half are tall

D.All are tall

Question

DNA Replication for DNA Replication for $100$100

QuestionQuestion

What is D) All are tall?

Selections

ProbabilityProbability

$500Answer

Probability for $500Probability for $500

Question

In humans the allele for dimples (D) is dominant. A woman (DD) and a man (Dd) have four children. What is the predicted ration of the children with dimples to the children without dimples?

QuestionQuestion

Selections

What is 1:0?

DD DD

Dd Dd

D D

D

d

$400Answer


In humans, thick lips (L) are dominant to thin lips. If a

homozygous dominant male has a child with a heterozygous dominant female, what is the probability that their offspring will have thick lips?

Question


QuestionQuestion

What is 100%?

Selections

LL LL

Ll Ll

L L

L

l


$300Answer

Question

Probability for $300Probability for $300The allele for white fur is recessive (w) to the allele for brown fur (W). A rabbit with the genotype (Ww) is crossed with a rabbit with the phenotype (Ww). What is the probability their offspring will have white fur?

QuestionQuestion

What is 25%?

Selections

In humans the allele for long eyelashes is dominant (L). A female who is

heterozygous for long eyelashes and a male with short eyelashes have a child. What is

the probability that their offspring will have short eyelashes?

Question


QuestionQuestionWhat is 50%?

Selections

Ll ll

Ll ll

L l

l

l


$100Answer

Each box in a punnett square represents what

percentage?

Question


QuestionQuestion

What is 25%?

Selections

Sex-linked TraitsSex-linked Traits

$500Answer

Sex-linked Traits for Sex-linked Traits for $500$500

Colorblindness is a sex-linked traits. Why is color-blindness found more in males than in females?

Question

QuestionQuestion

What is the trait is located on the X chromosomes, of which men only have one of?

Selections

Sex-linked traitsSex-linked traits

$400Answer

Question

Sex-linked Traits for Sex-linked Traits for $400$400

What percentages can be expected when a female carrier for color blindness crosses with a male with normal color vision?

QuestionQuestionWhat is 25% normal males, 25% colorblind males, 25% normal females, 25% carrier

females?

Selections


$300Answer

Question

Sex linked traits for $300Sex linked traits for $300

If a woman who is a carrier for hemophilia has children with a man who has the disease, what is the probability one of their children will NOT have the disease?

QuestionQuestion

What is 50%

Selections

XXh XhXh

XY XhY

X Xh

Xh

Y


$200Answer

Question

Sex-linked Traits for $200Sex-linked Traits for $200

If a woman is a carrier for hemophilia, what is her genotype?

QuestionQuestion

What is XXh?

Selections

Sex-linked TraitsSex-linked Traits

$100Answer

What chromosomes are sex linked genes located

on?Question

Sex-linked Traits for $100Sex-linked Traits for $100

QuestionQuestion

What are X and Y chromosomes?

Selections

PedigreesPedigrees

$500Answer

Pedigrees $500Pedigrees $500

Predict the genotype of individual 14, in the

pedigree above. Show your work!

Question

QuestionQuestion

Selections

ff ff

ff ff

f f

f

f

What is ff?

PedigreesPedigrees

$400Answer

The pedigree below shows a trait of colorblindness. Write the genotype

next to the symbol for each person in the pedigree

Question

Pedigrees $400Pedigrees $400

QuestionQuestionFilled in circle (mom): XcXc

Empty Square (dad): XY

Filled in square (son): XcY

EmptySelections

PedigreesPedigrees

$300Answer

Question

Pedigrees $300Pedigrees $300How many people in this family have a trait?

QuestionQuestion

What is 4?

Selections

PedigreesPedigrees

$200Answer

Question

Pedigrees for $200Pedigrees for $200

What are the symbols that represent a male and a female?

QuestionQuestion

What is a circle – female and a square – male?

Selections

PedigreesPedigrees

$100Answer

What is a pedigree?

Question

Pedigrees for $100Pedigrees for $100

QuestionQuestion

A map of family’s genotype use to trace a

disease or trait

Selections

Daily Double !!!Daily Double !!!You may bet

all of your earnings so far.

If you have no earnings, you may bet

up to $500.

Answer

Daily Double !!!Daily Double !!!You may bet

all of your earnings so far.

If you have no earnings, you may bet

up to $500.

Answer

FINAL JEOPARDY FINAL JEOPARDY QUESTIONSQUESTIONS

The allele for red eyes (R) is dominant to brown eyes (r). Students crossed male and female flies that had red eyes and recorded the eye color of their offspring.

What are the most likely genotypes of the parent flies?

Answer

ANSWERANSWER The allele for red eyes (R) is dominant to brown eyes (r). Students crossed male and female flies that had red eyes and recorded the eye color of

their offspring.

What are the most likely genotypes of the parent flies?– A. RR and rr– B. Rr and Rr– C. Rr and rr– D. RR and Rr

RR Rr

Rr rr

R

R

r

r

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What is a mutation?