What is a gene? Define Dominant and Recessive trait.

What is a gene? Define Dominant and Recessive trait.


Gene:

A gene contains chemical instructions for inherited traits. They are stored on structures called chromosomes.


Dominant trait:

A dominant trait is one that dominates, or masks, another form of that trait.

 

Recessive trait:

A recessive trait is one that is hidden, or masked, by another form of the trait.

Comments

  1. UnknownNovember 5, 2020 at 5:02 AM

    فلبلبلبلللببلبلبلبلبلبلبللبلبلبلبلبلبلبلبلبلبلبلبللبلبلغفلبفلبلفلبلفلبفغلللبفل

    ReplyDelete
  2. waleed taherNovember 5, 2020 at 5:20 AM

    يا ورع

    ReplyDelete
    Replies
    1. AnonymousNovember 5, 2020 at 5:21 AM

      ولله انك صادق انه ورع

      Delete

Post a Comment

Popular posts from this blog

What is Intertidal zone? Define Estuary.

Image
What is Intertidal zone? Define Estuary. I ntertidal zone : O ceans are divided into zones. The shallowest part of the ocean ecosystem is called the intertidal zone. The  intertidal zone  is the area where the ocean meets the land between high and low tides. Estuary : The boundary where freshwater feeds into salt water is called an estuary . An  estuary  is an area where a freshwater river or stream meets the ocean.
Read more

Revision work for chemistry Grade-8 2021.

Revision work for chemistry Grade-8  2021.  Chose the best. 1.     In a brewery the Fermentation is carried out          in ------------------- vats. A.    Small B.    Large C.    Medium D.    All 2.     Drugs are substances which affect          the ----------------------- in some way. A.    Plastic B.    Rocks C.    Body D.    None of them 3.     I n the 1950s a new drug called Paracetamol was           introduced. A.    Paracetamol B.    Placebo C.    Emulsion D.    Fermentation 4.     An Emulsion is an example of a ---------------- . A.    Emulsion B.    Fermentation C.    Placebo D.    Colloidal 5.     Detergents are ------------------ agents. A.   ...
Read more

Define Pedigree and Carrier.

Image
Define Pedigree and Carrier. Pedigree: A pedigree is a chart used to trace the history of traits in a family. They are used to study   heredity patterns. Parents and offspring are shown in a pedigree.   Horizontal lines connect parents, and vertical lines connect parents to offspring. Males are represented as boxes ; f e mal e s ar e shown as circles. Individuals with a dominant trait have a shaded shape . Unshaded shapes represent recessiv e individu a ls . C arrier : A carrier is any individual who has inherited the gene for a trait, but does not show that trait  physically.
Read more