Genetics final lesson before exam

• Biologie
• Middelbare school
• vwo
• Leerjaar 4

Repeat

Donderdag toets:

Phenotype and genotype

Phenotype = appearance  / Phenotype = genotype + environment

Genotype = genetic code (DNA) 

Body Cell (46)                    Sex cell (23)

Is the gene for sickle cell anemia likely to be dominant or recessive? Explain your answer

The disorder shown on the pedigree is ​Maple Syrup Urine Disease​ (MSUD) which is a metabolic disorder that affects the body’s ability to process certain proteins.
1. What is the inheritance pattern of this gene?
a) dominant b) recessive
2. Provide at least one piece of evidence for your claim.

Charcot–Marie–Tooth disease​ (​CMT​)causes motor and sensory neuropathies of the peripheral nervous system.
1. What is the inheritance pattern shown?
2. ​ Provide at least one piece of evidence for your claim.
3. The dashed line represents a possible union. Discuss the probability that such a union would result in a child with CMT.

Cystic fibrosis​ is a disease that affects the ability of cells to move sodium across the cell membrane. This causes mucus to build up in the lungs resulting in respiratory problems.
1. What is the inheritance pattern shown?
2. ​ Provide at least one piece of evidence for your claim.