Answer:
Non-disjunction
Explanation:
non-disjunction is occuring during anaphase I of meiosis I, this means that at least one pair of homologous chromosomes did not separate. The end result is two cells that have an extra copy of one chromosome and two cells that are missing that chromosome
fun facts:
(Nondisjunction occurs when chromosomes fail to segregate during meiosis; when this happens, gametes with an abnormal number of chromosomes are produced. The clinical significance is high: nondisjunction is the leading cause of pregnancy loss and birth defects)
Answer:
Bacteria and Archaea
Explanation:
Bacteria prokaryotic cells are those that do not have a membrane-bound nucleus.
Archaea are single-celled prokaryotic.
Plants reproduce through the
process of fertilisation. Fertilisation is the process where female and male
cells join together to form an embryo inside the seed. The seed protects the
embryo in preparation for germination when conditions permit the plant to
produce new plants.
Seed plants are classified into
two types to determine reproduction. First are the Angiosperms, this type of
seed plant has flowers that have special structures for reproduction. Pollens
are made by male cells, while ovules are made by female cells. Pollens are carried
out through the process of pollination (e.g. wind blows, insects carrying
pollen). Most angiosperms that don’t undergo pollination develop intro fruits.
If it goes into pollination they become new flowering plants.
<span>
Second classification is the
Gymnosperms, which are seed plants that are held in cones. Gymnosperms like
Angiosperms also have male and female reproductive cells. Reproduction also
occurs through pollination but most gymnosperms are trees. The best example of
a gymnosperm are pine cones. </span>
