Understanding Inheritance Patterns in Genograms

The video tutorial reviews inheritance patterns using genograms. It covers X-linked recessive, autosomal recessive, and autosomal dominant traits, explaining each with examples. The instructor encourages further practice and provides resources for additional learning.

What do the filled-in shapes represent in the genograms?

• Unknown status

• Affected individuals

• Unaffected individuals

• Carriers

In the first genogram, which gender is primarily affected by the condition?

• Neither

• Both equally

• Males

• Females

What type of inheritance pattern is shown in the first genogram?

• Autosomal dominant

• Mitochondrial

• X-linked recessive

• Autosomal recessive

In the second genogram, what is a key feature of the inheritance pattern?

• It affects every generation

• It skips generations

• It affects only males

• It affects only females

What type of inheritance pattern is shown in the second genogram?

• Autosomal dominant

• Autosomal recessive

• X-linked dominant

• Y-linked

In the third genogram, what indicates a dominant trait?

• The trait skips generations

• Both genders are equally affected

• More females are affected

• More males are affected

What type of inheritance pattern is shown in the third genogram?

• X-linked recessive

• Y-linked

• Autosomal dominant

• Autosomal recessive

Which of the following is NOT a characteristic of an autosomal dominant trait?

• Skips generations

• Appears in every generation

• Can be passed from an affected parent to child

• Affects both genders equally

Where can you find more examples and explanations of pedigree charts?

• Research papers

• Online forums

• Textbooks

• Wikipedia

What is the recommended approach to mastering inheritance patterns?

• Attend lectures

• Memorize definitions

• Practice regularly

• Read extensively