Answer:
Some minerals are needed in larger amounts than others, e.g. calcium, phosphorus, magnesium, sodium, potassium and chloride
During S phase, every chromosome replicates to yield two identical sister chromosomes (called chromatids ) that remain attached at their kinetochores.
Answer:
B. Are Harmful
Explanation:
Harmful mutations may cause genetic disorder or cancer.
I think it’s
Ocean formation
Sea floor spreading
Volcanoes
Sorry if I’m wrong
Answer:
The Genotype of a normal male wil be: XBY.
Explanation:
- A sex linked recessive disorder is expressed only in males because males have only one X chromosome and so only one allele for this gene can be present in them.
- Hence, if the recessive allele is present then colour blindness will occur.
- If the dominant allele is present then the male will be normal.
- XbY has a recessive allele so the male with this genotype will be color blind.
- XBYb cannot be aoption because Y chromosome cannot have the allele of the gene.
- XBXb is a female carrier's genotype.
- XBY has the dominant allele and so the man with this genotype will be normal.
