Question

Question 1(Multiple Choice Worth 2 points)

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 (recessive) and #2 (dominant). They have four offspring on the second row that all exhibit dominant traits: #5 (dominant), #6 (dominant), #7 (dominant), and #8 (dominant). The second couple in Generation #1 is made up of individual #3 (dominant) and individual #4 (dominant). They have three offspring in Generation 2: #9 (dominant), #10 (recessive), and #11 (dominant). Individual #8 from the first family and individual #9 from the second family mated together and produced three offspring in Generation 3. These offspring are #12 (recessive), #13 (dominant), and #14 (recessive).

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 1

@JSVSL7

Answer 2

I'll help when I get a chance

Answer 3

@DCharger96

Answer 4

i would suggest the last statement about individual #9 is true

Answer 5

Ok. I have another question...Do you think you could help? And Imma give you a medal after Im done

Answer 6

If a corn plant has a genotype Sstt, what are the possible genetic combinations that could be present in a single grain of pollen produced by the plant?

Ss, tt, St, st
St, st
St, sT, st

Answer 7

sure i'll try

Answer 8

I put the question up. Can you see it?

Answer 9

yeah is the genotype SsTt or Sstt

Answer 10

Sstt

Answer 11

k thx

Answer 12

St, st

Answer 13

Thx last 1
In some bees, thin stripes (S) are dominant over thick stripes (s) and black eyes (B) are dominant over gray eyes (b). Complete a dihybrid cross for parents with the genotypes SsBB and ssBb and determine the likelihood of offspring with the genotype ssBB.


SB SB sB sB
sB SsBB SsBB ssBB ssBB
sb SsBb SsBb ssBb ssBb
sB SsBB SsBB ssBB ssBB
sb SsBb SsBb ssBb ssBb

1/16
4/16
3/16
2/16

Answer 14

Imma put the chart up...its up on that but it isn't right...

Answer 15

ok

Answer 16

In some bees, thin stripes (S) are dominant over thick stripes (s) and black eyes (B) are dominant over gray eyes (b). Complete a dihybrid cross for parents with the genotypes SsBB and ssBb and determine the likelihood of offspring with the genotype ssBB.

1/16
4/16
3/16
2/16

Answer 17

i got 5/16 but go with 4/16 since it is the next closest one

Answer 18

k

Answer 19

I gave u a medal.. :D thx for the help

Answer 20

your welcome glad to help anytime