Bio Pedigree Study Guide

Would a point mutation result in a mistake in replication, protein synthesis, or meiosis?

Mistake in replication

What is the genotype of the couple in the 2nd generation in this pedigree?

Rr and Rr

What is the oldest man's genotype in this pedigree?

rr

What is the oldest woman's genotype in this Pedigree?

Rr

Is this pedigree tracing a dominant or recessive trait?

Recessive

Is this pedigree tracing an autosomal or sex-linked trait?

Autosomal

Is a point mutation a gene or chromosome mutation?

Gene mutation

What type of mutation is the following: Original DNA- AATCGCCA, Mutated DNA- AATCACCA?

Point mutation

Which of the following is NOT an example of Chromosome mutation?

Point mutation

Which of the following is an example of nondisjunction?

Down syndrome

The failure of chromosomes to separate during meiosis resulting in the wrong number of chromosomes.

Nondisjunction

What are the genotypes of the couple in the 2nd generation?

https://media.gimkit.com/image/upload/v1746491036/v9qyfpigjlxocn5yl0mx.jpg

Is pedigree B tracing an autosomal or sex-linked trait?

Sex-linked

What are the genotypes of the couple in the 1st generation?

Both Rr

Is pedigree A below tracing a dominant or recessive trait?

Dominant

Is pedigree A below tracing an autosomal or sex-linked trait?

Autosomal

A chemical that causes mutations (Ex: UV rays) is called

Mutagen

What is worse, a gene mutation or chromosome mutation? Why?

Chromosomes because they affect more than 1 gene

What is worse, a mutation in a somatic cell or a gamete? Why?

Gamete because it can be passed on to your children

What is a mutation?

Any change in DNA