Answer:
Crossing over, independent assortment and random fusion of gametes
Explanation:
Sexual reproduction creates variations by any of the three processes:
A) Exchange of genetic material between the non-sister chromatids of homologous chromosomes during prophase I of meiosis produce new gene combinations.
B) Independent assortment of homologous chromosomes towards opposite poles during anaphase I of meiosis I produce genetic variations among the daughter cells.
C) The random fusion of the gametes formed by meiosis further add genetic variations.
Answer: The A horizon is the top layer of the mineral soil horizons, often referred to as 'topsoil'. This layer contains dark decomposed organic matter, which is called "humus". The technical definition of an A horizon may vary between the systems, but it is most commonly described in terms relative to deeper layers.
Explanation:
Soil consists of different layers that are often called horizons. There are three main soil horizons called A, B and C as well as an organic layer (O) on top of the soil (O) and bedrock (R) below: ... It is only between 5 to 10 inches thick and consists of organic matter and minerals.
Answer:
codominance from what I remember
Answer:
Over all growth and development cycle
Explanation:
<em>C. elegans,</em> due to its manageability, nervous system, muscle, skin gut and reproductive cycle makes it an ideal model. These nematodes are similar to human systems and lot of the research found can be applied to humans and medicine.
Apoptosis is the programmed cell death and this can be for many reasons such as repair, replace or removal of old or damaged cells. This groundbreaking research has captured the attention of scientist over the decades and many new findings are continuing to evolve.
Some phenotypes that are important in studying apoptosis are: Stress response, growth and development, tumor formation/regeneration and wound healing.