Answer: A PEDIGREE is a family-tree like representation of how organisms are related based on ANCESTRY. It shows genetic relatedness or blood relationship between individuals or organisms.
Explanation: Pedigree can be used to determine
1. Family history or genealogy.
2. Genetic or blood relationship.
3. Coefficient of relationship.
4. Degree of relationship.
5. Proportions of shared genes.
6. Mode of transmission of diseases.
7. Risk evaluation or determination.
Genetic counseling.
8. Linkage analysis.
Pedigree symbols are used in constructing pedigree.
The answer is D. phobias. The little Albert experiment demonstrated that emotional responses can be conditioned in human beings. The 9 months boy was exposed to different stimuli which included a rabbit, masks, a white rat, burning newspapers and a monkey. After some time he was exposed to the white rat and later a loud noise of metal was made and it scared the boy. This exposure was repeated and eventually the boy became afraid of white furry things including animals.
Answer:
Since genes come in more than one version, an organism can have two of the same alleles of a gene, or two different alleles. This is important because alleles can be dominant, recessive, or codominant to each other. I hope this helps
