Cytokinesis is necessary at last to complete both the cell division !
Answer:
A. depend on a concentration gradient
Explanation:
Simple and facilitated diffusion are the two methods of transport of substances down their concentration gradient. In both processes, substances are moved from the region of their higher concentration to that of their lower concentration. Since simple diffusion and facilitated diffusion are passive processes, there is no requirement of energy input to drive them. Both are driven by the concentration gradient of the substances only.
Answer:
III-6
Explanation:
Obligate carriers, or obligate heterozygotes, are those individuals that may be unaffected clinically, but must possess a copy of the mutant gene. For autosomal recessive conditions, obligate carriers can be the offspring of a parental mating of two carriers (50% of offspring will also be carriers). They can also be produced by a parental mating of a carrier by an affected individual (50% of offspring will be carriers).
Answer:
Species with larger population sizes have more noncoding DNA.
Explanation:
The statement that most non-coding DNA is deleterious contradicts the fact that Species with larger population sizes have more noncoding DNA. Had the non coding been deleterious , its proportion in species with larger population would have been less but the fact that species with larger population sizes have more noncoding DNA contradicts it.
Mature ovum is being produced in oogenesis, while spermatogenesis has four mature sperms that contains enzymes due to that the sperm is able to penetrate an egg
