Answer:
It indicates that core histone genes were present in the last common ancestor of yeasts, plants, and animals
Explanation:
Histones are highly basic proteins that can strongly interact with DNA, which is packaged into nucleosomes, the basic structural and functional unit of chromatin. Each nucleosome is composed of approximately 147 base pairs of DNA wrapped around a core of eight histone proteins (two copies of four types of histones H3, H4, H2A, H2B). These core histones are evolutionarily conserved across eukaryotic kingdoms in terms of sequence and structure. Therefore, DNA-packaging into nucleosomes is considered a constraint for the evolution of core histones. Moreover, the presence of conserved core histones in eukaryotic kingdoms (e.g., yeast, plant, and animal kingdoms) is strong evidence that histone-mediated DNA packaging was presumably present in the last common ancestor of eukaryotic genomes.
Answer:
Xeromorphic adaptation is a type of adaptation which helps the plant body to retain water in dry environments.
Explanation:
Xeromorphytes are those plants having Xeromorphic adaptation. These plants adapt certain characteristics which enable them to store more water and lose less water. They have wax and hairs on their skin which reduces the transpiration process so they are able to survive in dry ecosystems of desert. They also have deep roots which absorbs water for it. For example, cactus plants.
Pretty sure its the same way a egg is fertilized.
It won't let me answer, it just says "rude! please change your answer."
