Answer:
It's equal to theat a critical point during interphase (called the S phase), the cell duplicates its chromosomes and ensures its systems are ready for cell division. If all conditions are ideal, the cell is now ready to move into the first phase of mitosis.the proceed at prophase where it condense to form respective sister chromatids
Answer:
Option (b).
Explanation:
Aposymbiotic may be defined as the type of biological interaction in which the organism lives in association with each other but lives apart from one another.
P. bursaria's requires the light for their growth and metabolism. The prey acts as the food source for the P. bursaria's. Hence, abundant amount of the prey and the abundant amount of light is favorable for the growth of the organism P. bursaria's.
Thus, the correct answer is option (b).
RNA is a polymer with a ribose and phosphate backbone and four different bases: adenine, guanine, cytosine, and uracil. The first three are the same as those found in DNA, but in RNA thymine is replaced by uracil as the base complementary to adenine. This base is also a pyrimidine and is very similar to thymine.
Answer: We need DNA to reproduce and it's unique due in part to recombination. recombination is traded between the chromosomes that make up a pair.
Explanation:
Explanation:
Spinal Cord is the tube-like structure which consists of bundles of nerve fibers. It is covered by the meninges and is surrounded by the cerebrospinal fluid.
Backbone or the spinal column is the central axis of the skeleton in all vertebrates. In a newborn human, there are about 33 bones that make up the spinal column. By the time the newborn becomes an adult, the number of bones reduces to 24 as they fuse during normal growth and development.
Moreover, the spinal cord is protected by the spinal column. In this article, we shall explore more differences between the two:
Difference Between Spinal Cord and Backbone
Spinal Cord
Backbone
Composition
Made up of bundles of nerve fibers
The backbone is made of bones called vertebrae
Function
Spinal cord acts as pathways for communication between the brain and the body
The backbone serves to provide structural support as well as support the body’s weight. It is also tasked with protecting the spinal cord
Segments
The spinal cord forms 31 segments, which are divided into 8 cervical nerves, 5 lumbar nerves, 12 thoracic nerves, 1 coccygeal nerve and 5 sacral nerves
The backbone can be split into 5 major segments – the cervical spine, the thoracic spine and the lumbar spine, sacrum and coccyx. Cervical spine is made up of 7 bones called vertebrae. Thoracic spine has 12 vertebrae and the lumbar spine and 5 vertebrae
