Bio Section 3 Flashcards Preview

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Flashcards in Bio Section 3 Deck (13)
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1
Q

DNA

A

Deoxyribonucleic Acid, Carrier of Genetic Information

2
Q

Gene

A

Uninterrupted section of DNA

3
Q

Allele

A

Variations in traits caused by the different gene sequences

4
Q

Chromosomes

A

Bunch of tightly wound up DNA

5
Q

Hybrid/heterozygote

A

When both alleles are present but only one trait is expressed

6
Q

Purebred/Homozygote

A

If both Chromosomes have the same allele

7
Q

Base Pairs/Nucleic Acids

A

The chemical compounds found in DNA that is responsible for carrying the genetic code

8
Q

Mitosis

A

Occurs in body to create body cells, and for growth and repair.

  1. Cell duplicates dna
  2. then it splits.
  3. New cells, are clones and proper amount of chromosomes
9
Q

Meiosis

A

used to create sex cells.

  1. dna duplicates
  2. splitting event 1.
  3. splitting event 2
  4. gametes are made. chromosomes are half the regular (haploid)
10
Q

Dominant Trait

A

Trait that shows up

11
Q

Recessive trait

A

trait that is present in DNA but is not shown

12
Q

Incomplete Dominance

A

when both alleles are neither dominant or recessive, and are mixed together.

13
Q

Deoxyribose

A

A sugary backbone of DNA