GR8 SCI Q4L1 Presentation - Genetics Patterns of Inheritance

Open Ended

In pea plants, the flowers can be purple or white. The diagram shows three generations of pea plant crosses.

Part A: Using the pea flower color cross, identify the pattern of inheritance shown and explain how the cross shows this pattern.

Part B: Explain how farmers could ensure that they only grow white flowers.

Match

In hamsters, short fur is dominant (F) and long fur is recessive (f). Match genotypes and phenotypes below.

• Homozygous short fur

• Heterozygous short fur

• Long fur

FF

Ff

ff

• FF

• Ff

• ff

Labelling

What type of genotype does each flower have?

Purple (P) is dominant to white (p).

Move label to bottom of square.

Drag labels to their correct position on the image

homozygous recessive

homozygous dominant

heterozygous dominant

Labelling

Label the Punnett Square

Drag labels to their correct position on the image

homozygous recessive

recessive allele

dominant allele

heterozygous

Labelling

​ ​ ​ ​ ​ Place the correct terms with the corresponding definitions

Drag labels to their correct position on the image

Heterozygous

Dominant

Phenotype

Recessive

Allele

Incomplete Dominance

Homozygous

Codominance

Genotype

Multiple Choice

What are the main components of DNA as shown in the image?

• Nucleotides

• Chromosomes

• Genes

• Cells

Multiple Choice

What does it mean if an organism is heterozygous for a trait?

• It has two identical alleles for a trait

• It has two different alleles for a trait

• It expresses only the dominant trait

• It cannot express the trait

Multiple Choice

What is the phenotype of the offspring? (A-Brown hair; a-blond hair) 

Your answer should include the percentage (%) for each phenotype.

• 75 % Brown Hair and 25% Blond Hair
• 25 % Brown Hair and 75% Blond Hair

Fill in the Blank

Worth 3 pts

What percentage of the offspring from a BbLl x BbLl cross would be expected to be heterozygous for both traits?

^{Use either the FOIL method or the double-monohybrid method}

Multiple Choice

How does incomplete dominance differ from codominance?

• Incomplete dominance results in a blended phenotype, while codominance results in both phenotypes being fully expressed.

• Incomplete dominance results in both phenotypes being fully expressed, while codominance results in a blended phenotype.

• Incomplete dominance involves only one allele, while codominance involves two alleles.

• Incomplete dominance occurs only in plants, while codominance occurs only in animals.

Multiple Choice

Term for an organism that display two dominant phenotypes at the same time

• codominance
• incomplete dominance
• multiple alleles
• linked genes

Multiple Choice

A bubble guppy with a yellow tail has offspring with a bubble guppy with a red tail. The offspring have orange tails. What is this an example of?

• Codominance

• Incomplete Dominance

• Multiple Alleles

• Polygenic Triats

Multiple Choice

What are the possible flower colors resulting from the cross between a red rose (RR) and a white rose (rr)?

• Pink

• Red

• White

• Yellow

Multiple Choice

Based on the Punnett square shown, which genotype (genetic combination) should be placed in the highlighted red box to accurately represent the inheritance pattern for sex-linked traits?

• X^BX^b
• X^bX^b
• X^bY
• X^BY

Multiple Choice

Duchenne muscular dystrophy is a recessive x-linked disorder.
According to the Punnett square, what percentage of male offspring will have the disorder?

• 0%
• 25%
• 50%
• 100%

Multiple Choice

If Tom has the genotype I^AI^B and Angela has the genotype I^BIⁱ, what are the possible phenotypes of their children?

• Group A, Group B, Group AB only

• Group A, Group B, Group AB, and Group O

• Group A and Group AB only

• Group A and Group B only

Multiple Choice

In flowers, 2 pink (RW) flowers are crossed. What are the genotypes and phenotypes of their offspring?

• 100% pink (RW)
• 50% pink (RW); 25% white (WW); 25% red (RR)
• 75% pink (RW); 25% white (WW)
• 100% red (RR)

Multiple Choice

The letters on the TOP AND SIDE of a punnett square represent ______________.

• The combination of alleles in offspring.
• The possible alleles given by the parents following meiosis.
• The genotype and phenotype of offspring.
• The results of genetic mutations in offspring.

Multiple Choice

What role does genetics play in personalized medicine?

• It allows for targeted treatments based on individual genetic profiles

• It enhances crop resilience and yield

• It unveils family histories and ancestral origins

• It is not related to medicine

Multiple Choice

What are the key ethical considerations in genetic testing as outlined in the image?

• Privacy and Confidentiality

• Discrimination

• Informed Consent

• All of the above

Multiple Choice

How does the concept of autonomy conflict with societal good in genetic testing?

• Individual choice vs. public health

• Cost of therapies

• Access to genetic testing

• Distribution of genetic therapies

Open Ended

Proteins do most of the work inside the cell. The work of the proteins causes the development of different genetic traits in organisms, so why is DNA important for genetic traits?