Please enable JavaScript.

Coggle requires JavaScript to display documents.

biochemistry (dihybrid (a hybrid that is heterozygous for alleles of two…

- - - - Half of the gametes get a dominant S and a dominant Y allele
  - - - In dihybrid cross you will get 4 types of phenotypes and their ratio will be 9:3:3:1
- - - - type of dwarfism
- - - - The internationally approved symbols for indicating males and females, marriages, various generations
      - Autosomal dominant
        
        One mutated copy of the gene in each cell is sufficient for a person to be affected by an autosomal dominant disorder
      - autosomal recessive
        
        both copies of the gene in each cell have mutations.
      - x-linked dominant
        
        disorders are also caused by mutations in genes on the X chromosome
      - x-linked recessive
        
        disorders are also caused by mutations in genes on the X chromosome
    - - Sex-linked diseases are inherited through one of the sex chromosomes
        
        X and Y chromosomes
        
        sex-linked traits are inherited through alleles
        
        passed from the parents' nonsex chromosomes to the sex chromosomes in the offspring
        
        Dominant inheritance occurs when an abnormal gene from one parent can cause a disease
        
        matching gene is normal from the other parent
        
        This means that the child will have a combination of both parents' nonsex chromosomes.
        
        The abnormal gene dominates the gene pair.
        
        If a gene is found only on the X chromosome and not the Y chromosome, it is said to be a sex-linked trait
        
        gene controlling the trait is located on the sex chromosome
        
        sex linkage is linked to the gender of the individual
        
        Usually such genes are found on the X chromosome
        
        any disease or abnormality that is determined by the sex hormones
    - - phenomenon that consists of the effect of one gene being dependent on the presence of one or more 'modifier genes'
        
        It was originally a concept from genetics
        
        dominant epistasis, duplicate dominant epistasis, recessive epistasis, duplicate recessive epistasis, dominant-and-recessive epistasis, and duplicate interaction
        
        interaction between genes that influences a phenotype
      - It is the phenomenon by which one gene does not allow alleles of another locus to express
        
        This is a counterpart of dominance.
        
        main difference between dominance and epistasis is that dominance is a type of interactions between alleles of the same gene whereas epistasis is a type of interactions between alleles of different genes.
- - - - amniotic fluid is removed from the uterus for testing or treatment.
      - This fluid contains fetal cells and various chemicals produced by the baby
- - - - P generation organisms are homozygous for the given trait, however, each parent possesses different alleles for that particular trait.
    - - zygote gets one from each parent
        
        restores the pair