Biology School Worksheet (Page 5 of 6) in pdf

Biology School Worksheet Page 5

Draw a P unnett s quare s howing a ll t he p ossible b lood t ypes f or t he o ffspring p roduced b y a t ype “ O” m other a nd a n a

Type “ AB” f ather

Mrs. C link i s t ype “ A” a nd M r. C link i s t ype “ O.” T hey h ave t hree c hildren n amed M atthew, M ark, a nd L uke. M ark i s

type “ O,” M atthew i s t ype “ A,” a nd L uke i s t ype “ AB.” B ased o n t his i nformation:

Mr. C link m ust h ave t he g enotype _ _____

Mrs. C link m ust h ave t he g enotype _ _____ b ecause _ __________ h as b lood t ype _ _____

Luke c annot b e t he c hild o f t hese p arents b ecause n either p arent h as t he a llele _ ____.

Two p arents t hink t heir b aby w as s witched a t t he h ospital. I ts 1 968, s o D NA f ingerprinting t echnology d oes n ot e xist

yet. T he m other h as b lood t ype “ O,” t he f ather h as b lood t ype “ AB,” a nd t he b aby h as b lood t ype “ B.”

Mother’s g enotype: _ ______

Father’s g enotype: _ ______

Baby’s g enotype: _ _____ o r _ _______

Punnett s quare s howing a ll p ossible g enotypes f or c hildren p roduced b y t his c ouple

Was t he b aby s witched?

Two o ther p arents t hink t heir b aby w as s witched a t t he h ospital. T he m other h as b lood t ype “ A,” t he f ather h as b lood

type “ B,” a nd t he b aby h as b lood t ype “ AB.”

Mother’s g enotype: _ ______ o r _ _______

Father’s g enotype: _ ______ o r _ _______

Baby’s g enotype: _ _____

Punnett s quare t hat s hows t he b aby’s g enotype a s a p ossibility:

Was t he b aby s witched?

Based o n t he i nformation i n t his t able, w hich m an c ould n ot b e t he f ather o f t he b aby? J ustify y our a nswer w ith a

Punnett s quare.

Name

Blood Type

Mother

Type A

Baby

Type B

George

Type O

John

Type AB

Dan

Type A

Jack

Type B

Biology School Worksheet Page 5