Answer:
Black dogs = A_B_
Brown dogs = aaB_
Yellow dogs = A_bb and aabb
Explanation:
In laborador retrievers, pigment color is influenced by two genes. Gene A determines the type of pigment produced and gene B affects whether the pigment gets deposited in the hair shaft. If two heterozygous black laborator retrievers were crossed and offspring were produced in a ratio of 9 black dogs to 3 brown dogs to 4 yellow dogs, what are the genotypes of the offspring?
Gene A determines colored pigment.
Gene B ensures that the colored pigment is deposited.
Two heterozygous black laborador retrievers were crossed.
AaBb x AaBb
Progeny
9 A_B_
3 A_bb
3 aaB_
1 aabb
<em>Since there were 9 black, 3 brown and 4 yellow dogs, the possible genotype of the different colors are: </em>
Black dogs = A_B_
Brown dogs = aaB_
Yellow dogs = A_bb and aabb
Hey there!
Here is your answer:
<u>The proper answer to this question is option A "spiral".</u>
Reason:
<u>A spiral galaxy has a little rotation, but not enough to flatten out. </u><span><u>Spiral galaxies consist of a flat, rotating disc containing stars, gas and dust. These galaxies contain what any other galaxy would have for example: Stars, planets, moons, etc... </u>
Therefore the answer is option A.
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit</span>
Answer:
+17.13
Explanation:
<em>brainliest please</em>
The answer to this question would be: B. the sphenopalatine ganglion<span>
If you tring to imagine what happens when you cry, the answer will become clearer. When someone crying, lacrimal glands of the eye secrete tear and your nose will produce secretion too, then become congested. The postganglionic neuron that located in that place is the sphenopalatine ganglion. </span>
