Chromosomes are thread-like structures located inside the nucleus of animal and plant cells. Each chromosome is made up of protein and a single molecule of deoxyribonucleic acid (DNA).
The unique structure of chromosomes keeps DNA tightly wrapped around spool- like proteins, called histones. Without this kind of packaging, DNA molecules would be too long to fit inside the cells.
DNA molecules in a single human cell if unwound from their histones and placed end to end, they would measure 6 feet in length.
Chromosomes play a key part in ensuring that DNA is accurately copied and distributed to new daughter cells as the parent cell divides to form new cells.
The answer is D.
Heterozygous individuals pass the dominant and recessive alleles to offspring.
Most boreal forests are dominated by CONIFEROUS EVERGREEN TREES. The correct option is E. Boreal forests can be found in Canada, Russia and in Alaska in United states. Most trees in these forests are conifers with needle leaves and cones, examples include: black spruce, white spruce, balsam fir, jack pine, etc.
Answer:
<u>Immunoglobulins E or IgE</u>
Explanation:
Immunoglobins E or IgE is produced by the immune system. If anyone have allergy, the immune will overreact with the allergens produces IgE antibodies. IgE Antibodies then reach to the cells responsible to release certain chemicals or mediators that produce Allergic Reaction. It is also known as type 1 Hypersensitivity.
Answer:
A, B, AB, or O, But I think its blood type B
Explanation:
One parent with A and another with B can produce a child with A, B, AB, or O blood types. If one parent has A and another has AB, they can either produce a child with A, B, or AB blood types.