Answer:
Heterozygous for the gene
Explanation:
Alleles are the possible alternative forms of a gene. An organism having two identical alleles of a gene is said to be homozygous for that gene. On the other hand, an organism having two dissimilar alleles for a gene is heterozygous for that gene.
For example, let's suppose that I^A and I^B are the two alleles for ABO blood type in humans. Here, an individual with one copy of I^A and one copy of I^B would be heterozygous for ABO blood type. On the other hand, genotypes I^AI^A and I^BI^B are homozygous for the ABO blood type gene.
Answer:
Wegener presented a number of evidence to prove his plate tectonic theory, such as :
- The matching of rocks on each side of the Atlantic Ocean like a puzzle.
- His knowledge hat organisms such as freshwater reptiles were found in almost all continents
- He also identified organisms that live in different continents, and could not possibly cross over to the other continents due to water bodies (oceans) separating the continents.
Wegener's plate tectonic theory caused doubts to other scientists, because of the way he presented his evidence. Other scientists considered his mechanisms unrealistic
Explanation:
I believe you're looking for "invasive species"