Riding animals or mounts ☝
Answer:
<em><u>A. Neither the subjects nor the researchers can bias the results.</u></em>
Explanation:
As described, a double- blind study is one in which the researcher and his study does not know the person receiving the actual treatment.
Researchers can be bias in their studies as they seek to establish and fine tune results in the way the best favors them. A double-blind study helps to bridge this gap to prevent bias that might be introduced into an experimental set up or while interpreting results.
Answer:
YES. This information is enough to assume that neither of the blood groups dominates over the other one.
Explanation:
<u>Available data:</u>
- A man with blood group B ----> Genotype IBIB or IBi
- A woman with blood group AB ---> Genotype IAIB
- Their daughter has blood group AB --> Genotype IAIB
The fact that the daughter´s genotype is IAIB tells us that she got the IA allele from the mother, who is IAIB, and the IB allele from his father, who is IB-.
- If blood type B was dominant over A or AB, then the daughter should have Blood type B.
- If blood type A was dominant over B or AB, then the daughter should have Blood type A.
- Blood type AB tells us that both types are being expressed, A and B.
The fact that the daughter inherited one type of allele from each parent, but she is expressing the blood type AB, suggests that neither of the alleles dominates the other one. This is an example of co-dominance, where the heterozygote phenotype is an additive expression of both of the parents' genes.
This is enough information to assume that neither of the blood groups dominates over the other one.
Answer:
True
Explanation:
some genetics can cause mutations and can be passed down or skip generations
1. A seed leaf - cotyledon
2. A flowering plant with seeds that have two seed leaves - dicotyledon
3. A food storage tissue - endosperm
4. A flowering plant with seeds that have one seed leaf cotyledon - monocotyledon
