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Blume CH 5 #27-40

A person with phenotype A blood has how many possible genotypes? two
A person with phenotype O blood has how many possible genotypes? one
Type O blood is dominant or recessive? recessive
Genes on chromosomes control the _______ that show up in an organism. traits
During _______, a pair of chromosomes separates and the ________ move into separate cells. 1. meiosis 2. alleles
The study of how traits are inherited is __________. genetics
The different forms of a trait that a gene may have are _________. alleles
An allele inherited on an X or Y chromosomes is a __________________. sex-linked gene
For humans, XX is a ________ and XY is a __________. 1. female 2. male
_____________ are genes that are altered or copied incorrectly. mutations
How is it possible for 2 parents with brown eyes to have a child with blue eyes? They would be heterozygous for brown eyes. This means there is a 25% chance of the child having blue eyes when you make a Punnett square for the parents.
What chromosome disorder causes Down Syndrome? It is caused when a person inherits 3 chromosomes for chromosome pair # 21.
How do scientists make a bacteria cell produce insulin needed by Type 1 diabetics? They take out a portion of DNA from a bacterium, and scientists replace that cut out spot with an insulin allele. That way when the bacterium reproduces, it produces insulin.
How is gene therapy used to help cystic fibrosis? It is used because the virus implanted with normal genes, DNA, and RNA invades a cell and lets out the normal gene into it. This can help with producing medicines to help stop cystic fibrosis.
Created by: cskiles