BIOLOGY HIGH SCHOOL

In some flowers there are two alleles for color, and these can both be expressed equally at the same time. Which best describes this trait?A. Dominant
B. Sex-linked.
C. Codominant
D. Asexual

Answers

Answer 1

Answer:

Answer;

C. Codominant

Explanation;

Codominance is a phenomenon where alleles of a particular gene pair in a heterozygous are fully expressed. The results is a an offspring with a phenotypes which is neither recessive nor dominant.
An example of codominance is the ABO blood group system. An individual with AB blood, which means that both the A allele and the B allele are equally expressed.

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The normal result of conception is a single cell that contains _____ pairs of chromosomes. 8 14 23 29
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What two ways helpful bacteria work to keep you healthy
The zebra mussel arrived in the United States in 1985 on the ballast of a ship. Since this time, it has spread rapidly throughout the waterways of the eastern U.S. and parts of Canada. Which of the following statements is NOT true about how the waters of the United States contributed to the success of the zebra mussel? They contained an abundance of prey for the zebra mussel. They contained toxins or pollutants that eliminated natural competitors of the zebra mussel. They contained few or no natural predators of the zebra mussel. They contained few or no natural species occupying the niche filled by the zebra mussel.

5. Which of the following sequences is an example of a point mutation of the DNA sequence -A-A-G-T-G-C-? -A-A-A-T-G-C-
-A-A-G-U-G-C
-G-T-A-G-A-A-C-
-A-A-G-G-T-C-

Answers

-A-A-A-T-G-C- because only one base pair is altered by the mutation

Advantages and disadvantages of indoor production broiler? And the barriers to expanding the free-range segment of the broiler industry. The answer focus on consumer preferences , product quality bird physiology nutrition and environmental factor

Answers

Answer:

Explanation:

The benefits of indoor production (for broilers) include regulated settings, reduced risk of illness, and optimal development circumstances. Optimal temperature, humidity, and illumination management improve feed efficiency and year-round output.

Limitations in space might affect the quality of the meat and the wellbeing of the birds in indoor production (broilers). Bird quality can be impacted by poor air quality, stress from overpopulation, and other factors. There are also issues with the environment and possible antibiotic usage.

Consumer preferences, unpredictable product quality, slower growth rates, greater feed requirements, weather-related dangers, and regulatory obstacles all work against the expansion of free-range broiler production. Addressing quality, welfare, sustainability, and public awareness are necessary to strike a balance amongst these aspects.

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Advantages of indoor production for broilers include better control over environmental factors such as temperature, lighting, and ventilation, which can lead to improved bird growth and feed conversion. Indoor production also allows for year-round production regardless of weather conditions. Additionally, it can provide protection from predators and diseases.

Disadvantages of indoor production include potential concerns about animal welfare, as broilers may be confined to limited spaces. There may also be higher risks of disease transmission due to close proximity of birds. Indoor production systems may require more energy for heating, cooling, and lighting, contributing to environmental impact.

Barriers to expanding the free-range segment of the broiler industry include consumer preferences, as some consumers may prefer the affordability and convenience of conventionally raised broilers. Product quality can also be a challenge, as free-range broilers may have different growth rates and muscle development compared to conventionally raised broilers. Bird physiology and nutrition need to be carefully managed to ensure proper growth and health in free-range systems. Lastly, environmental factors such as land availability and potential exposure to predators can limit the expansion of free-range broiler production.

What would happen to the concentration of Pyruvate, NADH and intermembrane H+ if Glycolysis stopped working?

Answers

When glycolysis stops working ; Pyruvate , NADH and intermembrane H+ will decrease .

Glycolysis is the step ( catalyzed metabolic linear process ) in a cellular respiration whereby glucose is converted to molecules ( 2 ) of pyruvate in the presence of oxygen or into lactate in the absence of oxygen.

Since the production of pyruvate, NADH and H+ is dependent on the process of glycolysis when glycolysis is stopped the amount of Pyruvate, NADH and H+ will be reduced / decreased.

Hence we can conclude that when glycolysis stops working Pyruvate,NADH and intermembrane H+ will decrease.

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Answer:

They all Decrease

Explanation:

I just took the test

Which of the following choices is not evidence supporting the theory of plate tectonics?a. fossil assemblages
b. ancient cave drawing found in France
c. the jigsaw puzzle-like fit of the continents
d. traces of glaciation found in Africa and South America

Answers

Hi!
let's go through the options:

a. fossil assemblages

Imagine you find similar fossils in Africa and South America - it would tell you that the same animals lived on the same continents, suggesting that the continents were close together!
b. ancient cave drawing found in France - this only tells you that people used to live in France at the time the painting was created, not whether the continents moved - so this is the correct option!

c. the jigsaw puzzle-like fit of the continents

This jigsaw tells us that the continents likely moved so it's supporting the theory of tectonic movement

d. traces of glaciation found in Africa and South America
This suggests that those continents were previously somewhere else - that is, they moved! so again, it suggests the theory of tectonic movement

b. acient cave drawing found in france

Are symptoms present in decompensated heterophoria? Explain

Answers

Final answer:

Yes, symptoms are present in decompensated heterophoria. They include eye strain, headaches, blurred vision, double vision, and difficulties with balance and coordination, and they often become worse when the person is tired, stressed, or engaging in intense visual tasks.

Explanation:

Decompensated heterophoria is a condition where the eyes have difficulty maintaining proper alignment. In cases of decompensated heterophoria, symptoms are indeed present. These symptoms can include blurred vision, double vision, eye strain, headaches, dizziness, and difficulties with balance and coordination. For example, a person with decompensated heterophoria may have trouble focusing on a book or computer screen for extended periods without experiencing discomfort or visual disruption. The symptoms often intensify when the person is tired, stressed, or has been using their eyes intensively.