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3 years ago

Chromosomes that have the same sequence of genes and the same structure

Biology

1 answer:

BartSMP [9]3 years ago

3 0

Answer:

Chromosomes that have the same sequence of genes and the same structure are <u><em>homologous chromosomes. </em></u>

Explanation:

Homologous chromosomes can be described as the chromosomes which carry the same genes at the same loci. They are identical to one another. One of the homologous chromosomes arises from the female and the other one of the homologous chromosome arises from the male during meiosis.

The crossing over between the DNA from homologous chromosomes is the main reason for the wide genetic diversity which occurs due to meiosis.

For example, humans have 23 pairs of homologous chromosomes and one pair of sex chromosomes.

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How many grams of solute are needed to make 250 mL of a 2.055 M NaCl solution?

Veronika [31]

Answer:

30grams

Explanation:

To calculate the mass (number of grams of the solute) in the solution, we need to calculate the number of moles it contains first. We use the formula;

M = n÷ V

Where; M= Molarity or Molar concentration = 2.055M

n= number of moles= ?

V= Volume = 250mL

Volume in L is 250/1000 = 0.250L

n= M × V

n= 2.055 × 0.250

n= 0.51375moles

The mass is calculated using :

Mole (n) = mass (m) / molar mass (MM)

Molar mass of NaCl = 23 + 35.5

= 58.5g/mol

Mass = molar mass × mole

Mass = 58.5 × 0.51375

Mass = 30.0543

Therefore, the mass is 30grams

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3 years ago

Does osmosis cause things to grow?

Vesna [10]

Osmosis is a process, this process involves molecules of a solvent to move through a semipermeable. It is basically purifies something. But no it does not cause things to grow it can help but it does not cause it

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3 years ago

What atoms are organic molecules in cells made of ?

Vitek1552 [10]

Answer:

All organic molecules are made up of carbon compounds so we can say that the main atom or molecule is carbon.

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3 years ago

An animal’s __________ is an immediate automatic response to an external stimulus.

guajiro [1.7K]

It could be reflex or instinct, most likely reflex

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3 years ago

3.6 In mice, the allele C for colored fur is dominant over the allele c for white fur, and the allele V for normal behavior is d

KengaRu [80]

Answer:

a) Parents Genotype should be (CC,Vv) and (cc,VV).

b) The genotypes of the parents are (Cc,Vv) and (Cc,Vv).

c) The genotypes of the parents are (Cc,Vv) and (cc,vv).

Explanation:

Mating has occured between a normal colored mice whose genotype is C_,V_ and normal white mice with genotype cc,V_. The offsprings are as follows :

1) normal mice produced 29 colored

2) 10 colored, waltzing progeny.

Thus all offspring are normal. The genotype of the first parent should therefore be CC. Waltzing trait is produced. The V gene should therefore be heterozygous in both traits.

Hence The parent genotypes should be<u> (CC,Vv) and (cc,CV).</u>

In this case the approximate ratio in which the descendants are produced is 9:3:3:1. Hence genotypes of the parents are <u>(Cc,Vv) and (Cc,Vv). </u>

In this case the approximate ratio in which the offsprings are produced is 1:1:1. The genotypes of the parents are <u>(Cc,Vv) and (cc,vv). </u>

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4 years ago

Chromosomes that have the same sequence of genes and the same structure​

Chromosomes that have the same sequence of genes and the same structure