Redo: DNA & Genetics

Redo: DNA & Genetics

By Felicia Powers

Review: DNA, Gene, & Chromosome​

Think about the differences between each.

The base pairs for DNA (A=T & C=G) ​

Some text here about the topic of discussion

Multiple Choice

 Which of these combinations identifies the appropriate labels in the order as shown in the diagram (1,2,3)?

• Chromosome, Gene, DNA

• Chromosome, DNA, Gene

• DNA, Chromosome, Gene

• DNA, Gene, Chromosome

Multiple Choice

Which of these statements about DNA is not true?

• One DNA molecule contains many genes

• DNA codes for traits in animals species but not in plant species

• DNA’s structure is a double helix 

• All hereditary traits are transmitted from parent to offspring through DNA

Multiple Choice

What is the relationship among DNA, a gene, and a chromosome?

•  A gene is composed of DNA, but there is no relationship to a chromosome

•  A chromosome contains hundreds of genes, which are composed of protein.

•  A gene contains hundreds of chromosomes, which are composed of protein.

•  A chromosome contains hundreds of genes, which are composed of DNA.

Multiple Choice

Which statement is true about DNA?

• DNA is an exact copy from parent to offspring. 

• DNA is not necessary for an organism to reproduce. 

• Each parent donates 50% each to make a genetically unique organism. 

• Organisms create their own DNA sequence that is not like their parents. 

Multiple Choice

. A strand of DNA with the sequence A A C T T G will have a complementary strand with the following sequence:

• TTGAAC

• AACTTG 

• TTCAAG 

• CCAGGT  

Review: Mitosis and Meiosis​

​Think about which one creates identical and non-identical cells

Some text here about the topic of discussion

Multiple Choice

Which of the following processes best describes what happens in body cells NOT gametes?

• Sexual        

• Binary fission     

• Mitosis

• Meiosis

Multiple Select

 Cells can reproduce through a process of either meiosis or mitosis. Which statement about reproduction is true? (More than one correct answer)

• The cells produced by meiosis are genetically different to the parent cells. 

• The cells produced by mitosis are genetically different to the parent cells. 

• Meiosis is a form of asexual reproduction. 

• Mitosis is a form of asexual reproduction. 

Multiple Choice

During which of the following processes are 4 genetically different daughter cells created? 

• Mitosis

• Asexual Reproduction 

• Meiosis

• DNA Replication

Review: Asexual and Sexual Reproduction

Think about disadvantages and advantages between both processes

Some text here about the topic of discussion

Multiple Choice

Which of the following BEST describes which type of organisms reproduce through asexual reproduction? 

• Only single celled organisms

• Bacteria, Yeast, and some plants. 

• Multi Celled organisms 

• Only bacteria 

Multiple Choice

Which of the following is an advantage for sexual reproduction?

• This type of reproduction takes more time

• Doesn’t speed up evolution

• 2 parents are involved 

• Creates genetic variation

Multiple Choice

 Which of the following requires only ONE parent creating a clone of themselves-no diversity, large amounts of offspring?

• Asexual reproduction

• Meiosis

• Sexual reproduction

• DNA Replication 

Review: Punnett Squares

Recall homozygous, heterozygous, genotypes, and phenotypes.

Remember how to set up the Punnett squares! ​

Some text here about the topic of discussion

Multiple Choice

An organism's PHYSICAL trait or appearance is described as?

• Heterozygous

• Homozygous

• Genotype

• Phenotype

Multiple Choice

WW,ww, and Ww would be examples of?

• Genotype

• Phenotype

• Homozygous

• Heterozygous

Multiple Choice

Which blood type would not be possible for children of a type AB mother and a type A father?

• Type O

• Type A

• Type B

• Type AB

Multiple Choice

What are the possibilities between a father heterozygous type B and a mother homozygous type A?

• 75% A     25% B

• 25 % AB  75% A

• 50% A    50% AB

• 25% A    25% B   50% AB

Multiple Choice

 In pea plants, tall is dominant (T) and short is recessive (t). A farmer decides to cross a heterozygous tall pea plant with a homozygous short pea plant. What percent of the offspring will be tall? 

• 25%

• 50%

• 75%

• 100%

Review: Pedigrees

Remember what a Pedigree's purpose is.

Remember how to determine genotype from pedigree.

Some text here about the topic of discussion

Multiple Choice

Which of the following best describes what a pedigree shows?

• The tracing of a disease or trait in a family. 

•  The types of gametes produced by the parents. 

• The genotypic ratios of the offspring. 

• Which genes are codominant

Multiple Choice

The pedigree demonstrates the tracing of color-blindness in a family. Color Blindness is X-Linked recessive. The unshaded people do not suffer from color blindness and half-shaded people are carriers. 

 What are the genotypes of an individual who is a carrier of color blindness? (HINT: This pedigree is displaying a recessive trait)

• CC

• cc

• Cc

• CCc

Multiple Choice

The pedigree demonstrates the tracing of color-blindness in a family. Color Blindness is X-Linked recessive. The unshaded people do not suffer from color blindness and half-shaded people are carriers. 

What are the genotypes of I-1 & I-2?

• Mom: Cc   Dad: cc

• Mom: cc    Dad: Cc

• Mom: CC   Dad: cc

• Mom Cc    Dad: Cc

Multiple Choice

Based on the pedigree, how many generations are there & what is the gender that is MOSTLY affected?

• Generations: 4

  Males and Females

• Generations: 3

  Males

• Generations: 4

  Males

• Generations: 3 Females