# data[].attributes.body
- 46 chromosomes
- haploid cells have one set
- dominant allele only one parent need to have it,

# data[].attributes.body
Gene loci: position of genes on the chromosome
4 nucleotide bases which are universal
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# data[].attributes.body
- gene locus
- alleles are found on particular gene locuses
- alleles can be homozygous recessive, homozygous dominant or heterozygous
- genes are basic units of heredity and are passed down from parent to offspring
- half of the genes are from the male gamete while the other half are from the female gamete
- genes vary in size from a few hundred bases to more than 2 million bases

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# data[].attributes.body
genes - they are inherited characteristics which control specific characteristics in a human.
- a gene occupies a specific position on a chromosome, called gene locus
- a chromosome is made up of DNA and protein
- no of chromosomes varies within species
- supercoiling of DNA around histone protein allows information to be stored in the nucleus
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# data[].attributes.body
Gene controls specific characteristics that are positioned in certain areas of chromosome.
Gene consists part of DNA.
Chromosomes are made up of DNA and proteins.
Diploid (2n)
Haploid (n)
ATCG

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# data[].attributes.body
1.Double helix structure
2. two polynucleotide chain which consist of A, T, G and C. This nitrogenous bases are held by hydrogen bonds
3. Different parts of the gene expresses to give unique characteristic for each individuals.
4.64 different codons
5. Genes are pass down to offspring through sexual reproduction. in animals, the combination of female DNA and males DNA(Mitosis).
6. DNA is the same for all animals
7. Anticodons
8.RNA have different Codon
9.stop codon
10. Start codon

# data[].attributes.body
-total of 46 chromosomes present in humans
-23 chromosomes present in haploids eg sperm
-genes are made up off DNA
-Certain genes are expressed providing individuals with specific traits.
-Chromosomes are made up of tightly coiled Dna strands.
-Centromere is center of chromosomes and provides attachment point during metaphase for microtubules
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# data[].attributes.body
Genes are contained in DNA which makes up chromosomes
Expression of genes determine traits expressed in a cell or organism
Condensed form of chromatin
Duplicates for cell division
DNA coiled around histones
Two identical sister chromatids joined at the centromere
End of chromosomes consist of telomeres (non-coding)
Crossing over of homologous chromosomes in meiosis determine genetic inheritance from parents
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# data[].attributes.body
-23 pairs of chromosome in human
-DNA made up genes
-ATCG
-Chromosome appear in different lengths
-Small differences in genes contribute to each person's physical features
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# data[].attributes.body
Genes
made by DNA (Deoxy Ribose Nucliec Acid)
Non-coding
Coding
Supercoiled around histone proteins
Hereditary
Complementary base pairing
Universal
Degenerate
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# data[].attributes.body
-Gene controls a specific characteristic
-46 chromosomes in humans
-chromosomes are made of DNA coiled around the histone proteins
-recessive and dominant allele
- base pairs of ATCG

# data[].attributes.body
genes are part of the chromosome
they are expressed to give certain traits in a human being
can be recessive as well
the dominant gene is the one that is expressed

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