All categories

3 years ago

Which statement best describes human eye color?

Biology

2 answers:

PtichkaEL [24]3 years ago

7 0

Answer:

The most appropriate answer would be option 2.

In humans, the color of the eyes was thought as a simple Mendelian trait however, it has been found that the color of the eye follows polygenic inheritance, that is, it is determined by multiple genes.

A set of 15 genes is responsible for the color of the eyes. Two genes out of these 15 are OCA2 and HERC2 which are present on chromosome 15.

Thus we can conclude that eye colour is polygenic trait which does not follow Mendelian genetics.

Doss [256]3 years ago

4 0

I think the answer is B

You might be interested in

Which of the following is a definition of reduction? a. Reduction is the gain of BOTH electrons AND oxygen. b. Reduction is the

Arada [10]

Answer: Option C) Reduction is the gain of electrons.

Explanation:

Reduction is a process involving a gain of electron(s), while oxidation involves a loss of electron(s).

Thus, an oxidizing agent is a substance that accepts electron(s) and become reduced, while a reducing agent is a substance that donates electron(s) and so becomes oxidized.

Thus, reduction is the gain of electron(s)

5 0

3 years ago

The city of Los Angeles wants to know if there is a connection between physical fitness and air pollution. Fifty volunteers from

zheka24 [161]

Answer:

Control group: volunteer stationary bike riders in a pollution-free chamber

Experimental group: volunteer stationary bike riders in a chamber filled with air pollutants common to Los Angeles

Independent variable: exposure to air pollution

Dependent variable: The heart rates (physical fitness) of the volunteer riders.

Explanation:

In a scientific experiment, data is compared between the control group and experimental group to ascertain the effect of the independent variable on the dependent variable. A control group is the group in an experiment that is not treated with the independent variable i.e. the independent variable is controlled while the experimental group is the group that is treated with an independent variable.

N.B: The independent variable is the variable controlled by the experimenter in order to influence the dependent variable (measurable outcome).

In this experiment, the independent variable is the AIR POLLUTION the volunteer riders are exposed to while the dependent variable is the PHYSICAL FITNESS/ HEART RATES of the volunteer riders, which is dependent on the exposure to air pollution (independent variable).

The control group in this experiment is the volunteer riders placed in a POLLUTION-FREE CHAMBER where the independent variable cannot influence or have any effect on the measurable variable (dependent). The experimental group is the volunteer riders placed in a CHAMBER FILLED WITH AIR POLLUTANTS. The independent variable (air pollution) has been changed in the experimental group.

4 0

3 years ago

Describe how one could experimentally determine whether a bacterium

Kamila [148]

Answer:

How can you determine experimentally whether a bacterium is a psychrophile or a mesophile? incubate two cultures, one around 10°C and the other around 35°C. If it grows in the lower temperature incubator, it is a psychrophile. If it grows in the higher temperature incubator, it is a mesophile.

Explanation:

8 0

2 years ago

Read 2 more answers

Why give amoxicillin before wisdom teeth removal?

Ulleksa [173]

I don't think doctors are supposed to do that but if they are I'm guessing it's probably to kill a infection of some kind or speed up the healing process

5 0

3 years ago

Question 6

Alekssandra [29.7K]

Answer:

Meotic cell division (mitosis)

3 0

3 years ago