They are a type of photoreceptor in the retina responsible for color vision. There are three types of cones; blue, green and red mainly packed in the fovea. The other type of photoreceptor is the rods responsible for black and white vision and are mainly located in the peripherals of the retina. Rods can perceive dim light, unlike cones.
The Mediterranean sea stretches 2,400 miles East to West from the coast of the Middle - east to the Strait of Gibraltar.
The average width is 450 miles while the widest point is 990 miles.
The Mediterranean sea is a large body of saline water between Europe, North Africa and Asia. It is connected to the Atlantic ocean in the west via the Straight of Gibraltar.
The Mediterranean basin was home to some of the earliest human civilizations in history.
Answer:
Explanation:
In general, frogs have protruding eyes, no tail, and strong, webbed hind feet that are adapted for leaping and swimming. They also possess smooth, moist skins. Many are predominantly aquatic, but some live on land, in burrows, or in trees.
The randomness in the alignment of recombined chromosomes at the metaphase plate, coupled with the crossing over events between nonsister chromatids, are responsible for much of the genetic variation in the offspring. To clarify this further, remember that the homologous chromosomes of a sexually reproducing organism are originally inherited as two separate sets, one from each parent. Using humans as an example, one set of 23 chromosomes is present in the egg donated by the mother. The father provides the other set of 23 chromosomes in the sperm that fertilizes the egg. Every cell of the multicellular offspring has copies of the original two sets of homologous chromosomes. In prophase I of meiosis, the homologous chromosomes form the tetrads. In metaphase I, these pairs line up at the midway point between the two poles of the cell to form the metaphase plate. Because there is an equal chance that a microtubule fiber will encounter a maternally or paternally inherited chromosome, the arrangement of the tetrads at the metaphase plate is random. Thus, any maternally inherited chromosome may face either pole. Likewise, any paternally inherited chromosome may also face either pole. The orientation of each tetrad is independent of the orientation of the other 22 tetrads.
Explanation:
Which type(s) of cells have genetic material that is contained in a nucleus?
- <em>D</em><em>.</em><em> </em><em>Both</em><em> </em><em>plants</em><em> </em><em>and</em><em> </em><em>animal</em><em> </em><em>cells</em><em> </em>
<u>Eukaryotic cells are those cells that retain their genetic material inside the nucleus. They have well defined nucleus. Plants and animals cells are eukaryotic cells.</u><u>.</u><u>.</u><u>~</u>
