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Zigmanuir [339]
3 years ago
12

The average volume of a red blood cell is 87 μ m 3 . The mean concentration of hemoglobin in red blood cells is 0.34 g ⋅ ml − 1

. What is the weight of the hemoglobin contained in an average red blood cell?
Biology
1 answer:
S_A_V [24]3 years ago
4 0

Answer:

2.956 × 10 ⁻¹¹ g

Explanation:

The mean concentration of hemoglobin in red blood cell = 0.34 g/ml

average volume of a red blood cell = 87μ m³ where 1 μ m³ = 1 × 10 ⁻¹² ml

average volume = 87 × 1 × 10 ⁻¹² ml  = 87 × 10 ⁻¹² ml

weight of hemoglobin contained in an average red blood cell =  87 × 10 ⁻¹² ml × 0.34 g/ml = 2.956 × 10 ⁻¹¹ g

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Hypothesize one way that a diploid organism could have offspring that are 3n or 4n
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Diploid refers to a cell that has two copies of each chromosome. One way that a diploid organism could have an offspring that are 3n (triploid) or 4n is when the chromosomes don't separate during meiosis.

Triploid refers to some cell that have 3 copies of each chromosomes for a total of 69 chromosomes.
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If a cell's lysosomes burst, the cell would ______.
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There are two types of alleles. An allele that masks another is the___allele. The one that is masked is called the___allele. An
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Answer:

Alleles refer to the alternative form of the same gene. These are mainly of two types: dominant and recessive allele.

The dominant allele is the which mask the effect of another allele in a heterozygous condition. The allele which is masked or which is not able to express itself in a  heterozygous condition is termed as a recessive allele.

For example, T (codes for tallness of a plant) is dominant over t which codes for a dwarf trait.

The organisms that contain the same allele for a particular trait is said to be homozygous for that trait. For example, TT and tt.

In contrast, if the organism contains different alleles for a particular trait, it is termed as heterozygous for that particular trait. For example, Tt.

Thus, the first, second, third and fourth blank can be correctly filled with dominant, recessive, homozygous, and heterozygous respectively.

7 0
3 years ago
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Suppose that a gene for coat color in mice has two alleles, B and b, where B is completely dominant and encodes a black coat col
pogonyaev

Answer:

Genotype= Bb

Phenotype= Black coat

Explanation:

A single gene coding for coat color in mice is involved here. An allele is a contrasting or variant form of a gene. Most genes possess two alleles.

According to Mendel's findings in his law of dominance, an allele is capable of masking the expression of another gene. The allele masking or being expressed is called a DOMINANT allele while the allele being masked is called a RECESSIVE allele.

The alleles of a particular gene can either be in a homozygous or heterozygous state. The alleles are homozygous when they are the same in that gene while it is heterozygous when they contain two different alleles i.e. a combination of the dominant and recessive allele.

In this case of a gene coding for coat color in mice, The allele coding for Black coat (B) is dominant over that coding for brown coat (b). This means that in an heterozygous state, allele B will mask the expression of allele b.

The genotype of an organism is the actual genetic make-up of that organism while its phenotype is just its phyaically expressed trait.

Since a heterozygous organism has a combination of two different alleles, hence, the mouse in an heterozygous state for coat color will have a Bb genotype.

Also, since the allele for black coat coloration (B) is dominant over the brown coat coloration (b), thus, in a heterozygous state, the black colour allele will mask the expression of the brown color allele, and express itself (exercise its dominance).

Therefore, a Bb genotypic mouse will produce a black coat phenotype.

N.B: A recessive trait can only be expressed when the organism is homozygous recessive for a particular gene i.e. have the same recessive genes but a dominant phenotype can have a homozygous or heterozygous genotype.

8 0
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Which cellular process is responsible for bringing solar energy into ecological pyramids?
ioda

Answer:

Photosynthesis

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photosynthesis is the act where plant manufacture their own food through sun lighte

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