Answer:
The dominant curled wing allele is also a recessive lethal.
Explanation:
If we look at the F2 ratio we see that :
curled wings: straight wings= 160:80
=2:1
Hence, if curled wings is considered to be a dominant trait then Curled wings * straight wings
Dd x dd
Punnet square will be as follows :
d d
D | Dd | Dd
d | Dd | dd
Hence in order to get F2
Dd x dd
Punnet square will be the same as above if the F1 cross is Dd* Dd
D d
D DD Dd
d Dd dd
if DD is lethal then the ratio is
Dd:dd=2:1
that is curled wings: straight wings=2:1
Hence, The dominant curled wing allele is also a recessive lethal.
I'm sure the answer is either A. B. or C.
i tried and what is with the other person's answer ??
hope this helps :)
As human travel increases , the number of introduced species likely increases .
<h3>What is species and how human travelling can increase the number of introduced species?</h3>
- As humans will start moving more from one place to another there will be more species number.
- The number of introduced species will increase sharply seeing the increase in the number of human population doing migration and travelling.
- The breakdown of regional distinctiveness leads to increase in the travelling period of the humans .
- And most importantly the introduction of new species will increase and will be impacted by the human who have come from elsewhere for either travelling purposes or migration purposes.
To know more about species visit:
brainly.com/question/13259455
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