Question

This pedigree chart tracks the inheritance of a recessive trait that is not sex-linked. Based on the information in the chart, which of the following statements is true?

This pedigree chart shows three generations. The individuals are numbered from left to right, starting at the top left of the chart. Squares represent males and circles represent females. If the symbol is gray, that individual exhibits the recessive trait. If the symbol is white, the individual exhibits the dominant trait. On the first row there are two couples mated together. The first couple is made up of individuals #1

Answer 1

Individual #11 must be homozygous for the recessive trait.

Individuals #3 and #4 must be heterozygous for the trait.

Individual #2 must be heterozygous dominant for the trait.

Individual #9 must be homozygous dominant for the trait.

Answer 2

^^ Possible Answers

Answer 3

Is there a chart? you should draw that out. otherwise I'm not sure i can help! :(

Answer 4

Thats All I Was Given !

Answer 5

Well let me take a look :).

Answer 6

Okay Thnxx :)

Answer 7

Well homozygus means it has two of the same trait and heterozygus means it has one of each. Do you get that so far?

Answer 8

Yeah Sorta. Like I Think It Is Like C ?

Answer 9

Well no because we don't know where she comes from. SO we can't assume that she has two traits from her parents.

Answer 10

Yeah Thats True..... hmmmm then it would be A ? Those Were my guesses....

Answer 11

Thats what i thought! but remember the white is the dominant trait. Re-read that answer and try again :)

Answer 12

So It Is NOT A ? Ugh LOL

Answer 13

Lol it's okay. Try looking at the ones leftover that aren't from the first generation that we don't know about their parents.

Answer 14

How about D? did it get both white traits? and are the traits it got both dominant?

Answer 15

Then I AM POSITIVE That It Is D ? Ugh I Am So Confused !

Answer 16

Yes! Exactly!

Answer 17

THANKS ! <3

Answer 18

Mhm :)

Answer 19

it was A

Answer 20

Its not D

Answer 21

Lol I love how we all come to conclusion 2 years later

Answer 22

its not A either

Answer 23

Is it A or D?

Answer 24

D!!!!!!

Answer 25

@hollandcook

Answer 26

lmao did anyone figure it out

Answer 27

A