Answer:
b. Replicated chromosomes line up on the equatorial plate.
Explanation:
Mitosis starts with the breakdown of the nuclear envelop and condensation of chromatids into visible chromosomes. Since DNA replication has occurred during the S-phase of interphase, each chromosome has two sister chromatids held together by a centromere. A chromosome with two sister chromatids is said to be a replicated chromosome.
Metaphase of mitosis includes the alignment of replicated chromosomes at the cell's equator. The process is assisted by the spindle apparatus. This is followed by splitting of centromere and separation of sister chromatids during anaphase.
Answer:
half
Explanation:
Pollen is composed of pollen grades which are microgametophytes of seed plants. This is one of two alternating phases in the life cycle of plants and algae. From these, the male gametes, also known as sperm cells will develop. As all gametes are haploid, the pollen grain will thus contain half of the genetic material found in a regular plant cell.
False : Plants, algae and many species of bacteria can make their own sustenance through the process of photosynthesis. They harness sunlight to drive the chemical reactions in their bodies that produce sugars
1. they break down cellulose that humans cannot digest
2. they break down lactose with lactic acid that humans cannot produce
Answer:
All living things must produce offspring like themselves in order for their species to survive. This is the process known as reproduction. Plants produce seeds that give rise to new plants of the same species. Animals lay eggs or have babies.
Explanation:
