Flashcards
unit 2.1 yr 10
Flashcards do conjunto (10)
- 1What is DNA?Deoxyribonucleic acid is the molecule that determines the characteristics of most living things.
- 2What are the 3 parts of a nuleitode?Phosphate Group
Deoxyribose sugar
Nitrogen-rich base
- 3Whta are the four nitrogen bases and how do they complement each other?Adenine, Thymine, Guanine, Cytosine. They all have different chemical structures and shapes that complement each other. Adenine and thymine complement each other. Cytosine and guanine complement each other.
- 4What are chromosomes?Chromosomes are long, thin, thread-like structures found in the nuclei of all cells in the human body.
- 5How many chromosomes, sex chromosomes and autosomes in the human body?46 chromosomes(Half from mother and half from father)
2 sex chromosomes(XX and XY)
44 Chromosomes - 6Characteristics of homologous chromosomes.Have the same length
Have a structure called the centromere in the same position
Have genes for particular characteristics at the same location along their lengths - 7Where is DNA found?It is found in the nucleus of cells and is sometimes found in the mitochondria.
- 8What are genes?Genes are sections of DNA arranged along the chromosomes.
- 9What is the difference between 1 gene and the next?Order of bases along the DNA strand
Number of bases in that section of DNA - 10What are the proteins used to create the structures and perform the actions needed for cells to survive, grow and function?Structural, such as collagen and keratin
Enzymes such as amylase and lactase
Regulatory, such as growth hormone and insulin.
Informações
- Descrição
- FlashCards sobre unit 2.1 yr 10, criado por Nasteexo Abdirahman em 14-02-2018.
- Criado por
- Nasteexo Abdirahman
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