In mammoths, assume that spotted skin (S) is dominant over non-spotted skin (s) and that wooly hair (W) is dominant over non-wooly hair (w). Cross a mating between a heterozygous spotted, non-wooly mammoth with a heterozygous wooly-haired, non-spotted mammoth. Give genotypic and phenotypic ratios of offspring.

Answers

Answer 1

Answer:

Genotypic and Phenotypic ratios → 1:1:1:1

25% of the progeny is expected to be SsWw, exhibiting spotted skin and wooly hair, SsWw25% of the progeny is expected to be Ssww, exhibiting spotted skin and non-wooly hair, Ssww25% of the progeny is expected to be ssWw, exhibiting non- spotted skin and wooly hair, ssWw25% of the progeny is expected to be ssww, exhibiting non-spotted skin and non-wooly hair, ssww

Explanation:

Available data:

spotted skin (S) is dominant over non-spotted skin (s)wooly hair (W) is dominant over non-wooly hair (w)Cross: heterozygous spotted, non-wooly mammoth with a heterozygous wooly-haired, non-spotted mammoth.

Parentals) Ssww x ssWw

Gametes) Sw, Sw, sw, sw

sW, sW, sw, sw

Punnett square) Sw Sw sw sw

sW SsWw SsWw ssWw ssWw

sw Ssww Ssww ssww ssww

F1) 4/16 = 1/4 = 25% of the progeny is expected to be SsWw, exhibiting spotted skin and wooly hair

4/16 = 1/4 = 25% of the progeny is expected to be Ssww, exhibiting spotted skin and non-wooly hair

4/16 = 1/4 = 25% of the progeny is expected to be ssWw, exhibiting non- spotted skin and wooly hair

4/16 = 1/4 = 25% of the progeny is expected to be ssww, exhibiting non-spotted skin and non-wooly hair.

Genotypic and Phenotypic ratios → 1:1:1:1

Related Questions

Beetles in a certain population can either be green color or brown colored. A change in the environment has caused the green colored beetles to become more visible and heavily prayed upon by other animals. Because of this change in the environment, what will most likely happen to this beetle population.?

A. The number of brown colored beetles will increase

B. The green colored beetles reproduce at a faster rate

C. The green colored beetles will change their color to brown

D. The population of green colored and brown colored beetles will become extinct

Answers

Answer:

A. i think

Explanation:

if green is being prayed on more, than less green are gonna be produced and brown will become more prominent. if that makes sense.

What is the relationship between UV radiation and melanin

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UVA radiation causes lesions or DNA damage to melanocytes, which are the skin cells that produce the skin pigment known as melanin. Melanin is a protective pigment in skin, blocking UV radiation from damaging DNA and potentially causing skin cancer.

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Answer:

DDddddddddddddddddddddd

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Answer:

Because of the animals present there.

Explanation: Birds and Turtles lay eggs with shells therefore the shells are more likely to be found in their landscape

Give 2 exampes of Density Independent factors that can kill off organisms.

Answers

Answer:

Factors include: food availability, predator density and disease risk. Density-independent factors are not influenced by a species population size. All species populations in the same ecosystem will be similarly affected, regardless of population size. Factors include: weather, climate and natural disasters.

Explanation:

What are the 6 regions of the
human body from which hair can
be derived?

Answers

Answer:

Hair is made of a tough protein called keratin. A hair follicle anchors each hair into the skin. The hair bulb forms the base of the hair follicle. ... Blood vessels nourish the cells in the hair bulb, and deliver hormones that modify hair growth and structure at different times of life, if that answers your question.

Explanation:

The six (6) regions of the human body from which hair can be derived are:

1. Head.

2. Eyebrow.

3. Beard.

4. Pubic area.

5. Body.

6. Armpit (underarm).

Hair can be defined as a threadlike, keratinous filament that typically grows out of the epidermis. Also, an epidermis is the outer layer of the skin.

Basically, the hair comprises two main parts and these are:

The follicle.The hair shaft.

Some of the macroscopic and microscopic properties of hair include:

Hair length.Hair color.Pigmentation of the cortex.Types of scales on the cuticle.Hair curliness.Pattern of the medulla.

Generally, hair can be found or grow in different regions of the human body and these include the following:

1. Head.

2. Eyebrow.

3. Beard.

4. Pubic area.

5. Body.

6. Armpit (underarm).

7. Eye lash.

8. Nose.

9. Finger.

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