Check your understanding
In dogs, black coat color (B) is dominant to yellow coat color (b), and straight
fur (C) is dominant to curly fur (c). The coat color gene and the fur texture gene
are on different chromosomes, so they assort independently, and are not sex
linked
In a cross between two BbCc parents, predict the fraction of offspring with
black coat color and straight fur.
Choose 1
1/16
9/16
15/16
Hint

The fraction of offspring with black coat color and straight fur is 9/16.

Explanation:

Information given:

black coat colour and straight fur - dominant genotype BBCC, BbCc

yellow coat colour and curly fur - recessive genotype  bbcc

Both the traits are independently assorted. The fur colour and fur type is not present on the same chromosome and are not sex linked.

The genotype of the parents are:

BbCc X BbCc

Punnet square shows:

          BC           Bc          bC        bc

BC  BBCC   BBCc        BbCC   BbCc

Bc  BBCc   BBcc          BbCc    Bbcc

bC BbCC    BbCc         bbCC   bbCc

bc  BbCc      Bbcc         bbCc    bbcc

9 BLACK STRAIGHT

 3 BLACK CURLY

 3 YELLOW STRAIGHT

  1  YELLOW CURLY

9/16 is the fraction of progeny to be black coat colour and straight fur.

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.

the atmospheric gas that forms a mild acid when dissolved in water is called carbon dioxide. the correct answer is a. 2.) chemical weathering would cause an inscription on a marble headstone to become harder and harder to read over time.