The data is not correlated.
The data is widely spread around the mean.
The data shows a close relationship between two variables.
The data is clustered closely to the mean value.
Slower rate of exchange of waste materials
Faster heat loss
Faster rate of mitosis
Slower intake of food
They express some of their genes but not others.
They all have a different genetic composition.
Different cells contain a different set of chromosomes.
Different cells do not have some of the genes.
To produce ADP
To form the only protective layer preventing damage from outside
To control entry and exit of substances
To synthesize proteins
Homologous chromosomes pair
Synthesis of proteins
Homologous chromosomes separate
Replication of DNA
Formation of proteins
Formation of carbohydrates
Formation of teeth
Transmission of nerve impulses
When the temperature reaches 85 °C there are no more double-stranded DNA molecules.
When the temperature reaches 85 °C the DNA strands start separating rapidly.
A TM of 85 °C means that DNA is not stable at room temperature (25 °C).
The separation of the DNA strands is directly proportional to the increase in temperature.
Storage of fat
Formation of mitochondria
Storage of energy
Formation of cell walls
To produce ATP and split water molecules
To produce ADP needed to fix carbon dioxide
To activate the enzymes that fix carbon dioxide
To activate carbon dioxide molecules
Tryptophan is replaced by leucine
Leucine is replaced by valine
Glutamic acid is replaced by valine
Lysine is replaced by glutamic acid.
Change of genetic code in the same species
Transfer of genes between species
Formation of clones
Infection by bacteria
Testing a suspected homozygote by crossing it with a known heterozygote
Testing a suspected heterozygote by crossing it with a known heterozygote
Testing a suspected homozygote by crossing it with a known homozygous dominant
Testing a suspected heterozygote by crossing it with a known homozygous recessive
Increased rates of decomposition of detritus trapped in permafrost
Decrease of geographical range of habitats for temperate species
Decrease of pest species and increase of permafrost species
Increase of geographical range of habitats for permafrost species
Population in the United States is increasing at a higher rate.
Infant death rate is high in both countries.
Males live longer than females in both countries.
Birth rate is higher in Mexico than in the United States.
Excess of food
Increase in prey
More space availability
Many pairs of legs
Presence of cnidocytes
To initiate contraction of the ventricle
To pass the excitation through Purkinje fibres
To originate excitation in myogenic muscle
To cause the relaxation of the atria
They can produce specific antibodies.
They can engulf foreign matter
They can block specific metabolic pathways.
They can act as a vaccine.
I and II only
II and III only
I, II and III
DNA and histone molecules
RNA and histone molecules
Histone molecules only
DNA polymerase III adds nucleotides in the 3′→5′ direction.
DNA polymerase III adds nucleotides in the 5′→3′ direction.
DNA polymerase I adds nucleotides in the 5′→3′ direction.
RNA polymerase adds nucleotides in the 3′→5′ direction.
It causes a conformational change to the active site.
It binds to the enzyme away from the active site.
It is structurally similar to succinate.
It is structurally similar to succinate dehydrogenase
Pyruvate is carboxylated, acetyl reacts with coenzyme A, reducing NADH + H+
Pyruvate is decarboxylated, acetyl reacts with coenzyme A, forming NADH + H+
Pyruvate reacts with coenzyme A, forming NADH + H+
Pyruvate is decarboxylated, reacting with coenzyme A, reducing NADH + H+
Coupling of ATP synthesis to the electron transport and proton movement
Phosphorylation of glucose in the mitochondrial matrix
H + ions moving down a concentration gradient into the mitochondrial matrix
Activation of ATPase in order to synthesize ATP
I and II only
I and III only
II and III only
I, II and III
Mass flow of water
By having the disease
Injection of antibodies
Tumour cells and T-cells
Tumour cells and B-cells
B-cells and T-cells
Antibodies and antigens
Selective reabsorption of water and molecules by active transport
Ultrafiltration introduces water and other molecules into the capillaries
Regulation of salt balance leading to the production of urine
High blood pressure forces water and other molecules into the nephron
Four eggs are produced Millions of sperms are per mitosis every 28 days produced per mitosis
Four eggs are produced One sperm is produced per per meiosis every 28 days meiosis
One egg is produced per Millions of sperms are mitosis every 28 days produced per meiosis
One egg is produced per Four sperms are produced meiosis every 28 days per meiosis