Someone with one recessive and one dominant gene is called what?

Part 1: Read each question carefully and choose the correct answer.

Vesna [10]

Answer:

1. d

Explanation:

The correct answer would be that the system of peer review is used to determine conclusively the conclusions of the paper.

The system of peer review refers to the process of evaluating a scientific report or paper by one or more independent scientists who have a similar background as the producer of the report or paper.

The reviewers evaluate the methodologies and various claims made by the original researcher and give feedback on their validity as well as make criticism of the paper in order to improve its quality before final publication. However, reviewers do not alter the claims or conclusions of papers, they can only query them.

Hence, options a, b, and c are correct as far as the peer review system is concerned.

The only incorrect option here is d.

2. There are 3 types of experiments, namely:

controlled experiment
field experiment
natural experiment

The controlled experiment involves the comparison of experimental group with control group. The two groups are subjected to the same conditions except for the variable whose effects are being researched.

The field experiment takes place outside the laboratory settings as opposed to other types of experiments. The subjects of the field experiment are studied in their natural environment outside the lab.

The natural experiment involves studying a phenomenon naturally without having control, unlike the controlled experiment. Observations are just recorded and are used to arrive at predictions or hypotheses.

Part 2:

Subject: 30 - 60 years old males

Control: Group B, the placebo group

Constant: Diet.

Independent variable: Administered drugs (choless and placebo)

Dependent variable: cholesterol level.

Part 3

Experiment 1:

a. Independent variable: types of detergent

b. dependent variable: height of foam

c. constant variables: amount of water, container type, temperature, period of agitation.

Experiment 2:

a. independent variable: amount of weight in each car

b. dependent variable: amount of gasoline left in each car

c. constant variable: car, type of gas, speed of car, distance covered by car.

Experiment 3

a. independent variable: amount of light

b. dependent variable: number of remnant bacterial cells after exposure to light

c. constant variable: initial number of bacteria, petri dish, type/amount of growth medium.

Experiment 4

a. independent variable: level of salinity

b. dependent variable: biomass of plant

c. constant variable: type of plant, period of growth, growth conditions.

5 0

3 years ago

Listeriosis is a bacterial infection caused by the genus listeria. it leads to blood infections and meningitis, and causes death

dimulka [17.4K]

Answer: Unlike other bacteria listeria germ usually grow and spread in the refrigerator thereby contaminating the refrigerator and spread to the foods stored in the refrigerator

Listeria are known to be causative agent of rare bacterial diseases called listeriosis. This infection are usually caused by eaten foods that are contaminated by listeria.Thus, Listeria can cause serious illness in newborns , pregnant women and adult with weaked immune system. unlike other bacteria listeria germ usually grow and spread in the refrigerator thereby contaminating the refrigerator and spread to the foods stored in the refrigerator which consequently cause sickness in the family.

7 0

4 years ago

What would happen if green plants were exposed to longer periods of sunlight

asambeis [7]

Answer:

Plants harvest energy from the sun with the help of chlorophyll and carotenoid, two photon-capturing molecules. But if the plants are exposed to too much sun, these molecules absorb more energy than they can handle and generate reactive species of oxygen that can destroy the plant.

8 0

3 years ago

Read 2 more answers

In 1976, an outbreak of pulmonary infections among participants at an American Legion convention in Philadelphia led to the iden

Mademuasel [1]

Answer:

Evolution.

Explanation:

It might have acquired the ability to cause disease due to evolution. Due to evolution, the harmless bacteria can turn into infectious pathogens that cause diseases. Evolution is the change in the characteristics of a species over several generations due to the process of natural selection. This evolution in the bacteria occurs due to changing of environmental conditions which changes the genetic makeup of that harmless bacteria and turn into infectious pathogen.

3 0

3 years ago

PLEASE HELP BRAINLY!!!!!!!!!!!!!!!!!!!1

nata0808 [166]

Answer:

wat

Explanation:

3 0

4 years ago

Read 2 more answers