how fo scientists describe the way by which genes are passed down from parents to children? simple 10th grade paragraph please​

Genes are passed down to children by the process of meiosis. Meiosis includes gametes (sex cells). Most cells in our body are diploid, they have 23 pair of chromosomes (46 in total). 23 come from our father and 23 from our mother. The gametes are haploids, which mean that they only have one copy of each chromosome. The gametes are formed by meiosis, which leads to genes being passed onto children. Meiosis is where a normal diploid cell divides to make four non-identical haploid cell. First, each chromosome makes a copy of itself. The pairs of chromosomes line up and divide. The two new cell divide again creating 4 new daughter cells, each with a single set of chromosome. Each new sex cell has a combination of the genetic material from the mother and the father. Now when a sperm fertilises and egg, a new combination of chromosomes are created. This is a diploid cell, which then divides to create a zygote (baby). The baby now has the genes (genetic material) from the parents.

Explanation:

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b. the carbon cycle ensures living things have a source of hydrogen

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

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