Biology Tutorials DNA and Genetics Part 2

Presentation

•

Biology

•

9th - 12th Grade

•

Medium

•

NGSS

HS-LS3-1, HS-LS3-2, HS-LS1-1

Standards-aligned

Jorie Williams

Used 15+ times

FREE Resource

13 Slides • 21 Questions

Spiral shape = double helix
Two-sided
Made of nucleotides
- Adenine, Thymine, Cytosine, and Guanine

DNA Structure

DNA = chemical instructions for making proteins
- Proteins determine your traits!

DNA Function

Fill in the Blanks

Type answer...

Match

Match the following base pairs.

Multiple Choice

According to Chargaff's rule, there are equal numbers of certain nitrogenous bases in DNA due to base pairing. So if we were to inspect a molecule of DNA and 20% of it was composed of Cytosine, what percentage would be composed of Adenine?

20%

30%

40%

25%

specific base pairs in a specific order
code that tells proteins what traits to give you

Genes

= Height Gene

Example

ATCG/TAGC = Tall

Multiple Choice

This is a picture of ?

Gene

Chromosome

Medicine

Genotype

Multiple Choice

________ are changes in genetic material.

Genes

Mutations

Variations

Biology

Creating and Solving monohybrid Punnett squares

Please watch the directions twice and take notes- Questions to follow

Monohybrid punnet squares

Multiple Choice

A Punnett square shows you all the ways in which _____ can combine.

Genes

phenotypes

Alleles

dogs

Multiple Choice

The dominant trait is

yellow pea seeds

green pea seeds

there is no dominant seed

Jolly green giant

Multiple Choice

This type of allele masks the recessive allele and is capital ________________

Dominant

Homozygous

Genotype

Phenotype

Multiple Choice

Heterozygous is when...

the alleles are the same

the alleles are different

the alleles are absent

the alleles are present

Multiple Choice

What allele combination should go in the missing box?

none of these

Multiple Choice

How many boxes would say BB?

Genotype and phenotype ratio and percentages

In four squares, each square represents 25% of the total or 1/4.

Multiple Choice

What are the chances that the offspring will have homozygous recessive traits?

1 in 4

3 out of 4

75%

50%

Multiple Choice

The genotypic ratio here is

25% blue eye 75 % brown eye

BB = 25% Bb = 50% bb = 25%

BB= 50 % bb = 50%

All brown eye

Multiple Choice

What is the genotypic ratio represented by the punnett square?

1:1

3:1

1:3

1:2:1

A genotype is the genetic sequence we write with letters and phenotype is the physical trait we see expressed

Fill in the Blanks

Type answer...

Multiple Choice

What is a phenotype

The genetic make up (code)

The physical trait

Multiple Select

In guinea pigs, short hair (H) is dominant to long hair (h). Also, black eyes (B) are dominant to red eyes (b).

Determine the genotype of a guinea pig with the phenotype: short hair with red eyes (select all possible genotypes)

HHbb

Hhbb

hhBB

HHBb

Multiple Select

A person with the genotype BBMm could produce which of the gametes below ...

Multiple Choice

Based off this punnett square, what fraction of the offspring will have wrinkled, yellow seeds?

9/16

3/16

1/16

16/16

Multiple Choice

What goes in box 15

aabb

AABB

aaBB

AAbb

Multiple Choice

Cross Two Homozygous plants
(RRYY x rryy)
R = round seeds, r = wrinkled seeds Y = yellow seeds, y = green seeds
What percent will have Round and Yellow seeds?

25%

50%

100%

Spiral shape = double helix
Two-sided
Made of nucleotides
- Adenine, Thymine, Cytosine, and Guanine

DNA Structure

DNA = chemical instructions for making proteins
- Proteins determine your traits!

DNA Function

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Biology Tutorials DNA and Genetics Part 2

​Genes

Creating and Solving monohybrid Punnett squares

Monohybrid punnet squares

Genotype and phenotype ratio and percentages

A genotype is the genetic sequence we write with letters and phenotype is the physical trait we see expressed

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Biology

Genes