Question

Which of the following can be observed in a karyotype?
a.
a change in a DNA base
b.
an extra chromosome
c.
genes
d.
alleles
e.
phenotypes

Answer 1

i said an extra chromosome

Answer 2

@superhelp101 clarrify?

Answer 3

i am 99% sure i am correct

Answer 4

yeah i agree with you I had to do karyotype in bio last year

Answer 5

the joy

Answer 6

In humans, a normal male has
a.
one X chromosome only.
b.
two X chromosomes.
c.
one X chromosome and one Y chromosome.
d.
two Y chromosomes.
e.
two X chromosome and one Y chromosome.

Answer 7

I think it is one X chromosome only.
but let me make sure

Answer 8

pretty sure its only one chromosomese

Answer 9

the Y is for female

Answer 10

lol we think alike again

Answer 11

wheee

Answer 12

it's C

Answer 13

uh wait could it be 2 chromsomes

Answer 14

but I thought Y was for female :'(

Answer 15

females have two copies of the X chromosome while males have one X and one Y chromosome

Answer 16

umm i thought it was one X chromosome

Answer 17

oohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
YEP YOU ARE SOOOO RIGHT WHERE IS MY BRAIN

Answer 18

who is right???

Answer 19

see http://en.wikipedia.org/wiki/X_chromosome :)))

Answer 20

it is C

Answer 21

i wrote:
Human females produce egg cells that have…?
One X chromosome.

Answer 22

dang it

Answer 23

ahhhhh did you submit it ?!?!

Answer 24

lol no

Answer 25

males have X and Y chromosomes so they're called the heterogametic sex and females have two X chromosomes so they're called the homogametic sex

Answer 26

trust me prae the cray, it's C

Answer 27

flashbacks to my crazy bio class last year! (>‿◠)✌

Answer 28

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