any sort of ancient fossil would be my quess. also i am on achallenge to see how many friends i can get on brainly so pls friend me
Answer:
The continuity of life from one cell to another has its foundation in the reproduction of cells by way of the cell cycle. The cell cycle is an orderly sequence of events in the life of a cell from the division of a single parent cell to produce two new daughter cells, to the subsequent division of those daughter cells. The mechanisms involved in the cell cycle are highly conserved across eukaryotes. Organisms as diverse as protists, plants, and animals employ similar steps.
Genomic DNA
Before discussing the steps a cell undertakes to replicate, a deeper understanding of the structure and function of a cell’s genetic information is necessary. A cell’s complete complement of DNA is called its genome. In prokaryotes, the genome is composed of a single, double-stranded DNA molecule in the form of a loop or circle. The region in the cell containing this genetic material is called a nucleoid. Some prokaryotes also have smaller loops of DNA called plasmids that are not essential for normal growth.
In eukaryotes, the genome comprises several double-stranded, linear DNA molecules (Figure 6.2) bound with proteins to form complexes called chromosomes. Each species of eukaryote has a characteristic number of chromosomes in the nuclei of its cells. Human body cells (somatic cells) have 46 chromosomes. A somatic cell contains two matched sets of chromosomes, a configuration known as diploid. The letter n is used to represent a single set of chromosomes; therefore a diploid organism is designated 2n. Human cells that contain one set of 23 chromosomes are called gametes, or sex cells; these eggs and sperm are designated n, or haploid.
Explanation:
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As for function DNA is basically a string of genes and RNA is what converts the information in the DNA into proteins. DNA is the control molecule of the cell and sits in the nucleus. It is made of two strands, connected by hydrogen bonds. Each strand is made of nucleotides.
Answer:
B. felsic igneous extrusive rock/ Granite
Explanation:
More than one hundred million years ago during the Nevadan orogeny, granite formed deep underground. The range started to uplift four million years ago, and erosion by glaciers exposed the granite and formed the light-colored mountains and cliffs that make up the range.
Answer:
A punnett square is used to determine the<u> phenotypes of a child.</u>
Explanation:
The genotypes of both parents are listed on the punnett square which is then crossed.
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<u>Dominant and Recessive traits:</u>
When crossed, each parents have their own dominant and recessive traits, the dominant trait always shows up on the child when mixed with a recessive trait.
