phosphorus helps a plant make other nutrients usable which allows it to grow, Phosphorus also is found in plant fertilizers.
Differences
1. Meiosis occurs in two divisions, resulting in four haploid cells. Mitosis, however, occurs in one division, resulting in two diploid cells.
2. Mitosis produces body cells, which are used for purposes of growth and repair. Meiosis, however, produces gametes, which are used in sexual reproduction.
3. Mitosis produces two identical daughter cells, but meiosis increases genetic variation by undergoing crossing over an independent assortment. The resulting daughter cells of meiosis are genetically unique to the parent cell.
Similarities
1. Both processes are completed in a specific order that is heavily monitored to ensure that errors do not occur.
2. Both processes proceed DNA replication as well as growth phases.
3. Both processes have at least one phase in which the sister chromatids separate; in the case of meiosis, it is anaphase II, and in mitosis, it is anaphase.
Direct observation
indirect observation
random sampling
mark-and-recapture
Answer:
B. rr
Explanation:
Genotype- Is the genetic makeup of an organism.
An homozygous individual is one who has similar allele e.g AA
It could either be in dominant form(AA) or recessive form(aa)
An heterozygote individual has two different allele in its genotype e.g Aa
A dominant gene is a gene that expresses itself in the phenotype of an individual while a recessive gene is a gene that is not expressed in the phenotype.
The genotype for a white homozygous flower is WW while the genotype for homozygous recessive is ww.
The dominant genotype is usually denoted with capital letter and the recessive is denoted with small letter.
In bird, females are heterogametic, produce two type of gametes. The two different sex chromosomes of a female bird has been designated to be the Z and W chromosomes. Whereas males have a pair of Z- sex chromosomes. Males are homogametic produce only one type of gametes with Z-sex chromosomes. Thus sex determination is ZW-ZZ type. In humans sex determination is XX-XY type. Males are heterogametic produce X and Y gametes and females are homogametic produce one type of gametes. Therefore, in bird sex are determined by female gametes.