Answer:
single gene traits are generally not significantly influenced by the environment, whereas complex traits have a significant environmental component
Explanation:
Single gene traits that are controlled by a locus, that is two alleles of a trait controls the expression of a character. Single gene traits are said to be involved in Mendelian inheritance. These traits are not all significantly influenced by environmental factors. On the other hand, complex traits, such as height in humans, which is controlled by 10 or more allelic pairs, have been found to be significantly influenced by environmental components like diet. This explains why the expression of height in human population is widely varied, and when each individual’s height of a population is plotted on a graph, we would see a normal distribution curve with a bell curved shape.
A high heritability coefficient can result when the trait varies greatly across individuals or when genes are important in an absolute sense.
What is heritability coefficient ?
The degree to which genetic variations among persons may adequately explain the variations in their attributes is known as heritability. Heritability, which is denoted by the statistic h2 in science, describes the proportion of a trait's variation that can be attributable to genetic variation. An estimation of a trait's heritability is particular to one population in a particular setting, and it might alter over time as conditions change.
Estimates of heritability range from 0 to 1. When a variable's heritability is near to zero, it means that environmental influences, rather than genetic differences, account for the majority of a person's variation in that trait. A heritability that is close to one means that genetic differences account for practically all of the variability in a trait and that environmental influences have a negligible role.
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No,Rock haven't cells because rock is non living thing.
Generally, mitosis occurs in most parts of the body, most especially those that are frequently exposed to wear and tear. Here are four parts of the body in which mitosis occurs, and these are the skin, the DNA, the muscles, and the circulatory system. Hope this answers your question.
Answer:
The contrast in coloration was pivotal to determine if predators attack snakes based on their colors.
It was for studying MIMICRY in snakes.
Assuming all the.snakes were the same the number of attacks will not indicate anything about the effect of the colored rings.
This question on the need for provision of a controlled experiment during experimental investigation. Thus in order to test the effect of a particular condition,another contrasting condition must be provided to determine if the condition under investigation is the actual results obtaned or the influence of other factors in the environment or in the experiment.
The change in the color of the ring is the VARIABLE .In the artificial snake the variable is the presence of this coloed rings against its absence in this snake.
since it changes in the artificial snake
Explanation: