Answer:
•The gene responsible for the albinism is sex-linked
•The gene responsible for the albinism is recessive
• The pedigree is contained in the attached file
Explanation:
The gene responsible for the trait of albinism is said to be sex-linked because all those that were mentioned with the expression of albinism were females
The gene responsible for the trait of albinism is also said to be recessive because it was found to be rarely expressed and this goes in line with the definition of a recessive gene, which says; a recessive gene is the gene that remains unexpressed ( phenotypically) in the presence of it counterpart ( the dominant gene) in an allelic pair.
Answer:
Blood pressure is higher in arteries than veins, and the elastic layer helps maintain the structure of the artery.
Explanation:
i think
Answer:
A. single-gene
Explanation:
It is controlled by a single gene that has two alleles. The allele for a widow's peak is dominant over the allele for a hairline with no peak.
The very primitive organism is the oldest because, over time, organisms gradually evolved into more complex organisms. First came the primitive organism, then it evolved into the more complex one, or the younger fossil.
Igneous rock.
Igneous rock forms from cooled and hardened magma or lava.