Bio True/False?

Question

A person who is heterozygous for an autosomal recessive can either be perfectly OK(phenotype appears dominant) or can be showing an incomplete dominance (may be sick at times or express only 50% of a required protein).

TRUE or FALSE?

A person who is homozygous recessive for a TRAIT will always have a DISEASE

TRUE of FALSE?

Men can be carriers for recessive disorders that are located on the X chromosome.

TRUE or FALSE?

Blood groups are a good example of codominance of alleles in humans.

TRUE or FALSE?

Genes on the X chromosome are important since they are all required to determine the sexual characteristics of an organism.

TRUE of FALSE?

In incomplete dominance the genes have actually blended together to make new proteins or alleles.

TRUE or FALSE?

If an organism has a diploid chromosome number of 18, then an individual with a tisomy will have 18x13=54 chromosomes.

TRUE or FALSE?

Answer 1

1. False- you can't be sick half the time.

2. false - blue eyes aren't a disease

3.false - women carry recessive disorders on the x chromosome, men actually recieve the disease

4.False - incomplete dominance

5.true- needed to make women

6.false - 18*13? nah

Answer 2

True - females can be carries for Fabry disease or suffer from it  with one gene for it

False - not all recessive traits are diseases, such as 5 fingers

False - they either have it or they don't, they can't be carriers

False - A and B are codominant, but O is recessive  

False - the Y chromosome starts development of male, otherwise it will be female

False - both are present, they don't make new ones

False - 18+18+18=54   18x13=234