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
Answer:
it's option number 2
Explanation:
the sun is the main source which always comes first the dandelion is a plant so it absorbs the sun's energy the grasshopper then eats the plant so the grasshopper got the dandelion's energy the frog eats the grass hopper and the snake eats the frog
Emotional expression, memory and motivation
Letter A, a hypertonic solution.
ALL OF THE ABOVE BECAUSE IT IS HARMFUL AND HELPFUL AND NEUTRAL SO YEAH ALL OF THE ABOVE