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3 years ago

What is the genotype ratio for the offspring in this Punnett Square? help

Biology

1 answer:

Gnoma [55]3 years ago

7 0

Answer:

1:2:1

Explanation:

When we say genotype, we are talking about the different type of allele combinations. Phenotype is when you are looking at dominant recessive ratios.

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A coin is tossed into the air 500 times. approximately how many heads would you expect?

julia-pushkina [17]

Really it matters on which head you start the flip on. Whichever head you start with, there's a 51% chance to land on that one. If you start with heads, it would be 255 times.

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4 years ago

A population of wild-flowers was scored for flower color. There were 342 blue (BB) plants, 1622 violet (BR) plants and 797 red (

BARSIC [14]

Answer:

Since the homozygous have 2 alleles and heterozygous have one of each. The allelic frequency of blue will be calculated as;

Step 1 Freq B

Freq B = 2×no of Blue+ No of purple/2× total number of plants

No of blue plants(BB)=342

No of violet plants(BR)=1622

No of red plants(RR)=797

Frequency of allele B= 2×342+1622/5522

Frequency of allele B=0.4176

2. Freq red

Since allelic freq should add up to 1. freq for Red will be

1-0.4176=0.5824

also using the same formula used for Blue gives the same answer.

3.Expected number for Blue, Red and Violet

a)Expected frequency=p2=0.4176² =0.1744

Expected Blue plants= 2761*0.1744=481.5184

b)Expected frequency=q2=0.5824²=0.3392

Expected Red plants=2761*0.3392=936.5312

c)Expected frequency=2pq = 2*0.4176*0.5824 = 0.4864

Expected plants=2761*0.4864= 1342.9504

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3 years ago

Where can ribosomes be found in addition to on the rough endoplasmic reticulum?

allsm [11]

The polysomes or polyribosomes, probably linked by the m-rna. Hope this helps!

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3 years ago

Mina had a throat infection; in a few days it had spread to her ear. What part of her ear would be affected first?

Rainbow [258]

Answer: Middle Ear

Explanation:

Ear is one of the most important part of human body by which an individual is able to hear sounds. It also helps in maintaining pressure inside body.

The Eustachian tube found inside the ear is a canal which is connects middle ear to the nasopharynx. This area consists of back of nasal cavity and the upper throat.

Its main function is to control the pressure within the middle ear, making it equal to the pressure outside the body.

Hence, the correct answer is option A

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4 years ago

Select the answer choice with increased levels of organization

Makovka662 [10]

Answer:

The answer is S.

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3 years ago