Icon Créer jeu Créer jeu

DNA replication

Compléter

Complete this fill in the blanks activity

Téléchargez la version papier pour jouer

Âge recommandé: 16 ans
7 fois fait

Créé par

Australia

Top 10 résultats

  1. 1
    06:36
    temps
    98
    but
Voulez-vous apparaître dans le Top 10 de ce jeu? pour vous identifier.
Créez votre propre jeu gratuite à partir de notre créateur de jeu
Affrontez vos amis pour voir qui obtient le meilleur score dans ce jeu

Top Jeux

  1. temps
    but
  1. temps
    but
temps
but
temps
but
game-icon

Completar

DNA replication

Complete this fill in the blanks activity

Belinda Schirmer
1

proteins nitrogenous C four purine two pull phosphate hydrogen replicate antiparallel adenine weak G deoxyribose pyrimidines

Each nucleotide consists of three parts - a , a sugar ( sugar in DNA , Ribose sugar in RNA ) and a base . There are types of nitrogenous bases , and each nucleotide is named after the base that it carries - , thymine , guanine or cytosine nucleotides . These are often simply referred to by their first letters - A , T , G and C . A and are the larger double - ringed bases and and T are the smaller single - ringed bases . Each DNA molecule is made up of chains or strands that have an arrangement - that is , they are parallel but run in opposite directions . Each strand is made up of a sequence of many nucleotides , and the strands are held together by weak bonds between the bases in the centre of the DNA molecule . The advantage of these hydrogen bonds is that little effort is required to the bases apart so that DNA can or be decoded to form .

2

uracil unzip cytosine replication ribose phosphate pyrimidine RNA base alternating

The vertical sides of the ladder are made up of sugar and phosphate molecules ( a sugar backbone ) and the 'rungs' of the ladder are pairs of a purine base linked to a base : adenine - thymine ( A - T ) and guanine to ( G - C ) . The bases are attached to the backbone through the sugar component . Bases are arranged in a sequence along each strand of DNA and the length of the DNA molecule is presented as the number of pairs ( bp ) . The two strands of DNA ( weak hydrogen bonds break ) for and gene expression . RNA is a single stranded molecule made of nucleotides , with a sugar attached to each phosphate to form the backbone ; on the other end it attaches to a base , either A , U , C or G . does not have thymine which is replaced by the base ( U ) .

3

mutagens complementary 'proof read polymerases template semi unzip enzymes proteins daughter conservative

The two DNA strands for replication . DNA are complex that move along the DNA molecule linking nucleotides to their base partners to make new DNA chains . Each strand of DNA is used as a to make a new complementary strand . This is known as - DNA synthesis . Accurate DNA replication is important so that the cells have exact copies of the genetic information for synthesising . Some DNA polymerase enzymes have the ability to and edit' the DNA , correcting its own errors . There are also complex enzymes to repair other damage to DNA caused by .

4

meiosis maintenance mitosis survival expression functioning accurately Heredity sexual instructions

Accurate DNA replication is important for two main reasons . : The genetic material of a cell must be transmitted from : a ) one cell to another during , allowing growth , repair and of an Organism . b ) one generation to another during , e . g . , when gametes are formed for reproduction . Gene : the genetic material of a cell must be transmitted accurately to give the correct to a cell to ensure the correct structure , and behaviour of an organism , essential for its .

5

continuity evolution parent advantage traits harmful mutation variation

Genetic relies on : consistent replication of genetic information that is passed on from a cell to daughter cells , resulting in continuity in the being passed from parent to offspring . The effect of natural selection and on the gene pool as a result of : a ) introduction of during sexual reproduction . b ) random errors arising by being replicated and passed on to offspring . Random variations that confer an may be selected over those that confer no advantage or are .