The probability of a pea plant with genotype rryy producing a gamete with genotype ry is 1.
<h3>What would be the probability of a pea plant producing genotype ry from the genotype rryy?</h3>
- Probability is a measurement used in genetics to forecast the likelihood that a desired trait will be acquired by a child. The most easiest way to calculate the probabilities is to make a punnet square.
- The genotypes of a specific cross or breeding experiment are predicted using the Punnett square, a square diagram. It bears Reginald C. Punnett's name, who developed the method in 1905. Biologists use the figure to calculate the likelihood that a child will have a specific genotype.
- If we employ a punnet square for the genotype rryy producing a gamete with genotype ry the probability would be 1. You can refer the diagram for the understanding of the punnet square.
- F1 genotype: rryy
- F2 genotype: ry ry ry ry
- Thus the probability would be 1.
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Answer:
trapping microorganisms
Explanation:
The primary role of the lymphatic system is to transport lymph through the body. Lymph is a fluid that contains white blood cells that fight with infection. Besides this immune function, lymphatic system has a role in fat and vitamin absorption and transportation.
Lymphatic system consists of vessels similar to blood vessels and nodes where the lymph is filtered. Lymph capillaries are closed on one side, so lymph does not circulate, but only drains to reach veins. In lymphatic system there is no such thing as a pump (only lymphatic vessels and lymph nodes).
The relative shortness of time they have been separated is the most important for explaining why there are equal numbers of snapping shrimp species on either side of the isthmus.
Speciation is the process of forming new species.
There are five main types of speciation:
- Allopatric speciation
- Sympatric speciation
- Peripatric speciation
- Parapatric speciation
- Artificial speciation
Although allopatric speciation is the most common type of speciation, all five types are described in more detail in the following sections.
Allopatric speciation occurs when one population is physically separated by a geographic barrier and slowly evolves into two separate species. With separation into different environments comes different environmental pressures that shape natural selection, the survival of the most fit organisms in the environment. These different environments allow for different traits to be selected.
Over time, the selection can create entirely new species. For example, snapping shrimp are a group of shrimp that were separated by the Isthmus of Panama across the Caribbean Sea. Over time, the selective pressures were so different that the populations of shrimp evolved into different species.
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Answer:
Steam distillation is an alternative method of achieving distillation at temperatures lower than the normal boiling point. It is applicable when the material to be distilled is immiscible (incapable of mixing) and chemically nonreactive with water.
Explanation:
Answer:
A. Green after being placed in the light because the plant would remove CO2 by photosynthesis; yellow after being placed in the dark because the plant would release CO2 by respiration.
Explanation:
According to this question, Bromothymol blue (BTB) is a chemical that can be used as an indicator of the pH of a solution. The presence or absence of CO2 in a solution decreases or increases the pH of the solution respectively.
- BTB appears green in a neutral pH i.e. little CO2
- BTB turns yellow in a low pH i.e. high CO2
Plants, in the presence of light, will perform photosynthesis and use CO3 as a reactant while in the dark, will perform cellular respiration and release CO2 as a waste product. Hence, in this case where an aquatic plant was placed into a test tube and covered it to keep it air tight.
- When placed under light for 24 hours, the aquatic plant will undergo photosynthesis and remove CO2 from the solution to make the solution appear GREEN due to neutral pH.
- When placed in the dark for 24 hours, the aquatic plant will undergo cellular respiration and release CO2 into the solution making the solution appear YELLOW due to low pH.