Gynmosperms are a group of seed producing plants, where the seed are grown on either the leaves (such as a ginko), or scales (such as a pinecone), and gametophytes are found in the same place as seeds, just in a different phase (2 ametes come together to make a seed)
<span>Lactase persistence, the ability to digest the milk sugar lactose in adulthood, is highly associated with a T allele situated 13,910 bp upstream from the actual lactase gene in Europeans. The frequency of this allele rose rapidly in Europe after transition from hunter–gatherer to agriculturalist lifestyles and the introduction of milkable domestic species from Anatolia some 8000 years ago. Here we first introduce the archaeological and historic background of early farming life in Europe, then summarize what is known of the physiological and genetic mechanisms of lactase persistence. Finally, we compile the evidence for a co-evolutionary process between dairying culture and lactase persistence. We describe the different hypotheses on how this allele spread over Europe and the main evolutionary forces shaping this process. We also summarize three different computer simulation approaches, which offer a means of developing a coherent and integrated understanding of the process of spread of lactase persistence and dairying.</span>
Answer:
Haploid
Explanation:
Each daughter cell is haploid, because it has half the number of chromosomes as the original parent cell.
It can breakout if the resistance stayed the same
The correct answer is option C, that is, woody, reinforced cell walls.
The prime layer of growth in the roots and stems of various plants, mainly in dicots like oak trees and buttercups, and gymnosperms like pine trees is known as vascular cambium. It generates phloem on the outside and xylem on the inside.
The vascular cambium thickens stems or branches and increases their girth. Thus, due to their unique tendency, one would expect vascular cambium to be simple, undifferentiated cells, which possesses the tendency of rapid cell differentiation, but would not expect them to have woody, re-inforced cell walls.
