DNA Code of Life

Question 1

Tangled network of chromosomes located within the nucleus

Answer 1

chromatin

Question 2

The individual threads that form a chromosome

Answer 2

chromatid

Question 3

Structure joining two threads of a chromosome

Answer 3

centromere

Question 4

A structure made up of two chromatids joined by a centromere that carries the hereditary characteristics within the DNA

Answer 4

chromosome

Question 5

Adenine (A) always bonds to thymine (T) and guanine (G) with cytosine (C) in DNA molecule, to ensure the precision of DNA replication

Answer 5

base pairing

Question 6

Tangled network of chromosomes located within the nucleus

Answer 6

chromatin

Question 7

That part of the protoplasm within the nucleus

Answer 7

nucleoplasm

Question 8

That part of the protoplasm outside the nucleus

Answer 8

cytoplasm

Question 9

Segment of a chromosome that controls each characteristic/ a unit of sequenced pieces of DNA that carry the genetic information that will determine the hereditary characteristics of an organism.

Answer 9

gene

Question 10

Nucleic acid that is a constituent of chromosomes

Answer 10

DNA

Question 11

Characteristics that are passed from parents to offspring

Answer 11

gene

Question 12

Natural shape of a DNA molecule

Answer 12

helix

Question 13

Building blocks of nucleic acids consisting of a sugar, a base and a phosphate

Answer 13

nucleotide

Question 14

The formation of an exact copy of the DNA in a cell

Answer 14

DNA replication

Question 15

The original strand upon which a new strand is developed

Answer 15

template

Question 16

The new strand that is made based on the sequence of nucleotides on the template

Answer 16

complementary strand

Question 17

The base that pairs off with guanine

Answer 17

cytosine

Question 18

The base that pairs off with adenine

Answer 18

thymine

Question 19

The base found in RNA and not DNA

Answer 19

uracil

Question 20

The chemical bonds which link base pairs in the DNA molecule

Answer 20

hydrogen bonds

Question 21

Process involving the formation of two new identical DNA molecules from an original DNA

Answer 21

DNA replication

Question 22

The three adjacent bases found on a DNA or m-RNA molecule

Answer 22

codon

Question 23

A single unit that makes up a larger molecule

Answer 23

monomer

Question 24

A large molecule which is formed from many small molecules (monomers)

Answer 24

polymer

Question 25

The type of DNA found only in the mitochondrion

Answer 25

mitochondrial DNA

Question 26

This is a nitrogen containing molecules either Adenine, (A); Thymine (T); Guanine (G); Cytosine (C) or Uracil (U).

Answer 26

nitrogenous base

Question 27

The building block (monomers) of RNA and DNA. Each nucleotide consists of a pentose sugar, a phosphate ion and a nitrogenous base.

Answer 27

nucleotide

Question 28

All the genes present in an organism

Answer 28

genome

Question 29

A sudden and relatively permanent gene / chromosomal change

Answer 29

mutation

Question 30

Carries the hereditary information of the organism and the molecule is a double helix (twisted) strand.

Answer 30

DNA