Bio Vocab

A base that is found in DNA. It will only bond with thymine to create the 'rungs' on DNA

one of a number of possible forms of a gene

building blocks for proteins-there are 20 different types

found in flowering plants, contain the male plant gametes

reproduction of identical offspring from a single parent

any chromosome, ither than se chromosomes

one of four chemicals which make up the rungs of DNA (adenine, thymine, cytosine, guanine)

to base that make up the rungs of DNA, either A-T or G-C

the structual and functional unit of all living organisms

the formation of two or more daughter cells from one mother cells

thread like structure bearing genes that are found in the nucleus of a cell. Visible during prophase of cell division

A distinctive inherited feature of an organism

the process by which produces indentical genetic individuals

A base that is found in DNA. It will only bond with guanine to create the 'rungs' on DNA

deoxyribose nucleic acid. a molecule found in the nucleus of cells which codes for an indiviuals genetic make up

a process where DNA creates a exact copy of its self

an allele that controls the phenotype regardless of the other allele

A term used to decribe the stucture of DNA. Twisting ladder

Protiens that act as biological catalyst in living organisms. they control the rate of reactions.

the fusion (joining) of the nucleus of male and female gamete to form a zygote

sex cell. A cell that must join with an other gamete to form a zygote of sexual reproduction

length of DNA carrying the code of one feature

the study of how organisms inherit features from one generation to an other

genetic info held in the DNA

the combo of two alleles that an organism has for a paricular gene

A base that is found in DNA. It will only bond with cytosine to create the 'rungs' on DNA

having to different alleles for one gene; not true breading

having to identical alleles for a gene: true breading when crossed with genetically identical organisms

passing on of traits from one genertation to the next through the gentic code

Photograph of a indiviuals chromosomes, arranged in pairs showing there number size and shape

the type of cell division which produces four haploid genetically different gametes. I happens in the gonads

a types of cell division which produces two identical daughter cells

two or more atoms chemically bonded eg CO₂

a random change in the gentic code of an indivual

A molecule containing a sugar-phosphate-base, found in DNA. nucleotides pair up to form DNA

New idiviuals produces by either sexual or asexual reproduction

living thing. Able to do MRSCGREN

female organ that produces female gametes-eggs. which are used in sexual reproduction

a chart which show how genes are inherited

molecules that contain amino acids. they are found in all living organisms.

the male plant gamete

a diagram used to predict the phenotype and genotype rations of offspring by showing how the alleles combine together during fertilisation

organisms homozygous for a trait

a allele that willl only show when the doimant allele is absent

a process that is used to bread for specific traits

DNA replicated by unziping a DNA molecule then pairing up of nucleotides to produce two new DNA molecules each with half new half old strand sof DNA.

a pair of chromosomes that determines the gender of the indiviual

reproduction involving the fusing of a female and male gamete. It produces varation in the offspring

the male organ that produces sperm-male gamete. Sperm are used in sexual reproduction

A base that is found in DNA. It will only bond with adenine to create the 'rungs' on DNA

a feature whose apperence is determined by genes

a sequence of three necleotides

differnces between indiviuals

A fertilised egg. A single cell containing chromosomes of both male and female gametes at the time of fertilisation