Answer:
Proportion of the F2 male with red eyes and forked bristle will be 1/4
Explanation:
forked bristles are caused by an allele (Xf) that is X linked and recessive to an allele for normal bristles (X+).
Brown eyes are caused by an allele (b) that is autosomal and recessive to an allele for red eyes (b+)
A female fly that is homozygous for normal bristles and red eyes mates with a male fly that has forked bristles and brown eyes
X+X+b+b+ x Xfbb
the F1 gives 1/2X+Xf 1/2b+b
1/2X+Y 1/2b+b
intercross of F1
Proportion of the F2 male with red eyes and forked bristle will be
forked bristle= Xfy = 1/2 and for red eyes 2/4= 1/2 = 1/2x1/2 =1/4
NUCLEUS IS CALLED CONTROL CENTRE OF THE CELL BECAUSE IT PERFORMS TWO MAIN PRINCIPAL FUNCTIONS:
1. Contains genetic information for structure, reproduction , development, metabolism and behaviour. ...
2 Controls cellular activities through directing synthesis of particular proteins and enzymes.
Explanation:
It contains the genetic instructions for every function of the cell. It is the cell's powerhouse and processes energy for the cell. It is responsible for packaging proteins for delivery out of the cells.
If you are filling out a punnet square it will look like the photo below but it will produce YySS yySS YYSs YYss YySs and yyss
Answer:
Italy has experienced many earthquakes.
Explanation:
i got it right in study island
