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2 years ago

List three reasons that snow predictions made by meteorologists are sometimes incorrect

Biology

1 answer:

mr Goodwill [35]2 years ago

8 0

The conditions depend on the density level of the snow.

Another reason is the imperfect data gathering especially if initial results are only gathered.

The third reason is that computer models still find it difficult to see small scale phenomena.

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What are the gametes that would be formed for the following genotype: Aa?

dlinn [17]

Answer:

A and a

Explanation:

GAMETE formation occurs via a process called MEIOSIS. During meiosis, segregation and independent assortment of genes occur. According to Gregor Mendel who proposed the law, the law of segregation states that the alleles of a Gene will separate into gametes. This separation occurs in such a way that only one allele of that gene is found in each gamete.

In this case, an organism with genotype "Aa" will produce gametes that contains the following: A and a. Therefore, the gametes of genotype Aa will be A and a.

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2 years ago

In pea plants, height is determined by an allele for tallness (T) that is dominant over an allele for shortness (t). What is the

Komok [63]

Answer:

C. 1/2

Explanation:

I took the test and got it right.

6 0

2 years ago

Read 2 more answers

The texture of igneous rock that is composed of large mineral grains

zmey [24]

Phanerictic bc planerictic texture is sometimes referred to as coarse-granted igneous texture

6 0

2 years ago

In a dihybrid cross involving two autosomal traits on different chromosomes in which the parents are purebred for the opposite f

Simora [160]

Answer:

The question lacks options, the options are:

A) 1 out of 16

B) 3 out of 16

C) 6 out of 16

D) 9 out of 16

The answer is 1 out of 16

Explanation:

This is a DIHYBRID cross because it involves two different genes coding for distinct traits. One of the traits will be dominant while the other recessive. Hence, parents that are purebred for opposite forms of the trait means that one parent is homozygous dominant while the other is homozygous recessive. When these two parents cross, they produce F1 offsprings that all possess the dominant trait but heterozygous/hybrids.

When these hybrids are self-crossed, they produce four different combinations of gametes which when crossed using a punnet square will result in F2 offsprings with a 9:3:3:1 phenotypic ratio according to Mendel's observation.

9 represents offsprings that are dominant for both traits

The two 3's represents offsprings that are recessive for one trait and dominant for the other respectively.

1 represents offsprings that are homozygous recessive for both traits.

Hence, 1 out of 16 offsprings will be homozygous recessive for both traits.

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2 years ago

Suppose that RNA polymerase was transcribing a eukaryotic gene with several introns all contained within the coding region. In w

Elenna [48]

Answer: synthesize a pre-rRNA 45S (35S in yeast), which matures and will form the major RNA sections of the ribosome. RNA polymerase II synthesizes precursors of mRNAs and most snRNA and microRNAs. RNA polymerase III synthesizes tRNAs, rRNA 5S and other small RNAs found in the nucleus and cytosol.

Explanation:

3 0

2 years ago