Answer;
The correct answer would be Rr.
In a monohybrid cross, the phenotype ratio of 3:1 is obtained only when both the parents are heterozygous for the trait.
In this condition, the heterozygous genotype would be Rr. The phenotype of both the parents would be round seeds (R) as the round is a dominant trait.
The cross of these parents would produce offspring with three types of genotypes RR, Rr, and rr in ratio 1:2:1.
Thus, the phenotypic ratio would come out to be 3 (round seed):1 (wrinkled seed).
Answer:
The heat they lose is proportional to the surface area of their bodies, while the heat they produce is proportional to their mass. This means that larger warm-blooded animals can generate more heat than they lose and they can keep their body temperatures stable more easily.
The answer is carbohydrates.
Food in the mouth is moistened and lubricated with saliva. Saliva contains an enzyme called salivary amylase.
Salivary amylase is an enzyme that breaks down complex carbohydrates molecules into simple or smaller carbohydrate molecules called maltose. The enzyme acts on carbohydrates in the mouth, initiating the process of digestion.
Salivary amylase is made by the salivary glands in the mouth. Maltose is later converted to glucose in the small intestine by another type of amylase called pancreatic amylase.
A scientific fact is an information or knowledge gained through scientific methodology.
<h3>
What is science?</h3>
Science is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.
Science can also be defined as the pursuit and application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.
Scientific methodology includes the following:
- Objective observation:
- Evidence
- Experiment or testing of hypotheses
- Induction
- Repetition
- Critical analysis
- Verification and testing of evidence
Thus, a scientific fact is an information or knowledge gained through scientific methodology.
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