WorksheetsBio - Topic 2 Definitions
Total questions: 40
Worksheet time: 40mins
The sequence of nucleotides in DNA or RNA that codes for a polypeptide chain
(a)
Complete set of inheritable genes/ genetic make-up of an organism
(a)
Different forms of a gene
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Random change in the nucleotide sequence of the genome. Any change to the genotype caused by a change in DNA.
(a)
When both alleles in a gene are expressed (example, pink snapdragons)
(a)
The allele that overrides other alleles/ only need one allele to be expressed
(a)
The allele that is overridden/ needs both recessive alleles to be expressed
(a)
Homozygous dominant
(a)
Homozygous recessive
(a)
1 dominant and 1 recessive allele
(a)
Observable traits from a gene
(a)
An enzyme that separates the two strands in the double helix
(a)
A strong covalent bond that forms between the phosphate group and sugar group of a nucleotide and consists of two ester bonds
(a)
Reads DNA to form complementary base pairs on mRNA strands
(a)
The 3-nucleotide sequence of DNA/mRNA that specifies amino acids or terminations
(a)
The building block of new DNA strand or mRNA
(a)
A copy of half a strand of DNA, to be used in protein synthesis
(a)
Brings specific amino acids to the mRNA strand
(a)
Creating a copy of half a strand of DNA, with complementary bases, creates an mRNA strand
(a)
Creating an amino acid chain, using complementary codons and anti-codon
(a)
Net movement of water molecules, through a partially permeable membrane from a solution with more free water molecules to a solution with less free water molecules, down the water potential gradient.
(a)
Lipid with a carbohydrate attached by a glycosidic bond
(a)
Protein with a carbohydrate attached by a glycosidic bond
(a)
A lipid with a phosphate group on it
(a)
A double layer of phospholipids, which make up the cell membrane
(a)
A protein that allows specific polar molecules to pass through them, through facilitated diffusion through a cell membrane
(a)
A protein that changes shape when in contact with a specific molecule, allowing it to pass through the cell membrane
(a)
A type of lipid found in the cell membrane, it regulates fluidity and allows cells to resist temperature change
(a)
Small sacks that contain substances that move around the cytoplasm
(a)
The process to transport substance into the cell using vesicles
(a)
The process used to transport materials from inside the cell to the outside, using vesicles
(a)
Diffusion that can occur without the aid of transport proteins
(a)
Diffusion that requires transport proteins (carrier/ channel) to happen
(a)
Requires energy from respiration (ATP), works against the concentration gradient
(a)
Located or occurring within a cell or cells
(a)
A genetic disorder, that makes the mucus in the body lose water and becomes sticky
(a)
Continuously removes the mucus, by beating in a wave-like motion
(a)
A channel protein for chlorine, that is used in keeping the amount of water in the mucus good
(a)
A form of prenatal testing takes place at 15 -17 weeks of pregnancy
(a)
Form of prenatal testing takes place at 8-10 weeks
(a)
