Answer:
A) Chromosomes are made of DNA
C) Alleles are the different forms of a gene that can exist
D) Chromosomes contain genes that control the inheritance of traits.
Explanation:
Chromosomes are long molecules of deoxyribonucleic acid (DNA) that contain part (or all) of the genetic material of an organism. Humans contain 46 chromosomes organized in 23 pairs of homologous chromosomes (22 pairs of autosomal chromosomes and one pair of sex chromosomes, X and Y). Moreover, a gene is a physical segment of a chromosome that contains the information to encode a protein. Alleles are different forms of a gene (i.e., gene variants) that may be caused by mutations or genetic recombination. Humans are diploid organisms (2N: 46), and therefore we have two copies of each gene (alleles), one on each homologous chromosome.
Moving from the shade into the sun, removing a sweater, curling up in a ball all are the examples of behavioral mechanisms for modifying heat loss via conduction and radiation.
What is heat loss?
- Heat transfer from one material to another can occur intentionally or accidentally.
- Conduction, convection, and radiation are possible mechanisms for this.
- When a component comes in direct touch with another component, whether it is insulated or not, conduction frequently happens.
- Convection happens when an air barrier surrounds a pipe, electric heater, or other component.
- When there is no touch and heat travels in waves, it is called radiation.
Here are some typical heat loss regions that designers of heating equipment should take into consideration:
- uncovered surfaces
- Insulated surfaces that are horizontal or vertical
- Water is present.
- surfaces with paraffin or oil
- Wind speed has an impact.
Hence, all are the examples of behavioral mechanisms.
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High energy electrons are highly reactive (Their energy can be used to make NADPH & ATP.)
Answer:
A monohybrid cross is defined as the cross happening in the F1 generation offspring of parents differing in one trait only. A dihybrid cross is a cross happens F1 generation offspring of differing in two traits.
Explanation:
and the tow words have a prefix and mono means one and the dihy means two. a hydrate containing two molecules of water.
The answer is that the equatorial regions receive sun rays closest to the vertical (direct rays) because of their position relative to the equator where the tilting of the earth only mildly affects the climate. The climate along the equator changes very little through out the year and has summer like conditions for most of the year.
However the other regions may receive direct sun rays but for far more limited periods. In the months of July and August (summer months), the northern hemisphere is tilted towards the sun and receives the most direct rays. The opposite occurs in December and January when it is tilted away from the sun and thus winter sets in, whereas the southern hemisphere is at this time tilted toward the sun and receives the most direct sun rays.
