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trasher [3.6K]
2 years ago
10

4.Gregor Mendel crosses two pea plants. One pea plant has purple flowers (Pp),

Biology
1 answer:
Zanzabum2 years ago
5 0

Answer: 25% chance they will have white flowers.

Explanation: a recessive gene can only be expressed if both parents recessive genes line up (pp). A punnet square will show that there is only 1/4 chance that both recessive genes will line up

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If you count 52 purple rough corn kernels and 50 yellow smooth corn kernels how many people smooth corn kernels should you expec
Vitek1552 [10]

Answer:

17

Explanation:

In corn,

Smooth kernel (S) is dominant to rough kernel (s)

Purple kernel (P) is dominant to yellow kernel (p)

Since no information has been given about the cross here let us assume it to be a standard dihybrid cross.

The phenotypic ratio of dihybrid cross is 9:3:3:1. 9/16 will show dominant phenotype for both traits, 3/16 will show dominant phenotype for one trait, other 3/16 will show dominant phenotype for the second trait, 1/16 will have recessive phenotype for both the traits.

Here,

Purple rough (P_ss) = 52

Yellow smooth (ppS_) = 50

Both of them show dominant phenotype for one trait so they each form 3/16 of the progeny.

If the total progeny was z, 3/16*z = 50

z = (50*16)/3 = 267

Total progeny = 267 kernels

Yellow rough kernels (ppss) = (1/16*267) = 17

So approximately 17 corn kernels will be yellow and rough.

8 0
3 years ago
How can a change in biotic factors change the population of an organism? Use the words limiting factor in your response.
Simora [160]
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4 0
3 years ago
Which is true of all animals?
Otrada [13]

Answer:

All animals are eukaryotic, multicellular organisms, and most animals have complex tissue structure with differentiated and specialized tissue. Animals are heterotrophs; they must consume living or dead organisms since they cannot synthesize their own food and can be carnivores, herbivores, omnivores, or parasites.

Explanation:

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8 0
3 years ago
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I need help. Im pretty sure the answers are B, A, C, C but im not sure. Can someone help me? Questions are in the picture!!
Rzqust [24]

Answer: It is B, A, C and C

Explanation:

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3 0
2 years ago
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Jobs in agriculture have varying degrees of necessary education and experience.
miss Akunina [59]

Answer:

True

Explanation:

Agriculture has a misconception of just being farmers with no education- that is untrue. Farmers are required to know many things in order to preform in their job. You also need people to maintain and repair the equipment, someone to keep track of the seeds, etc. There are many Ag careers and majors in college.

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3 years ago
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