Science Test
I think this is right.... I got it off of msscience.com
Terms
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copy deck
- The four nitrogen bases that are found in DNA are adenine,guanine,thymine, and ______
- cytosine
- The process of meiosis ensures that the organism will have ________
- the same dipliod number as its parents have
- A sea star has one of its arms break off. The arm grows into its own seperate organism through _______
- regeneration
- What is a part of asexual reproduction?
- regeneration
- Which of these is a part of sexual reproduction?
- zygote
- When a mistake happens in the process of copying DNA, the result is called _________
- a mutation
- What is a possible outcome of a mistake in meiosis?
- An organism might not grow normally
- Each of your cell uses ___________ of the genes in a chromosone
- some
- Of the two types of cells made by the human body, the majority of those calls are__________
- body cells
- The final step in the mitosis process for animal cells is _______
- telophase
- What is the base found in RNA but not in DNA?
- Uracil
- What is the part of the cell that contains hereditary material?
- chromosones
- The cell that is formed when fertilization occurs is called ___________
- a zygote
- During prophase the two centioles ____________
- move to opposite ends of the cell
- DNA code is _______ before being passed to new cells
- copied
- How many chromosones in a humans kidney cell?
- 46
- The process of the cell cycle where the nucleaus divides to create two identical nuclei is called __________
- mitosis
- What can fission be used to do?
- asexual reproduction
- If a dipliod tomato cell has 24 chromosones, how many chromosones will the tomato's sex cells have?
- 12
- The structure of DNA looks like _______
- a twisted ladder