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natka813 [3]
3 years ago
7

Which of the following must happen after DNA helicase has interacted with a double helix for DNA replication to occur

Biology
1 answer:
Art [367]3 years ago
5 0
<span>I think B but not 100% sure</span>
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A model of a gene, DNA, and a chromosome is shown here. A researcher tags the gene with a heavy radioactive isotope (P-32). Whic
adoni [48]

Answer:

The gene will be radiolabeled, but only a portion of the chromosome will display P-32 because genes are smaller than chromosomes

Explanation:

Genes are made of DNA, but there are many (numerous) genes found along chromosomes. Only a small portion of the chromosome will be radiolabeled.

7 0
3 years ago
In sheep, white wool is dominant over spotted wool. If 10 purebred white wool sheep (TT) are crossed
Anon25 [30]

Answer:

0

Explanation:

This question involves a single gene coding for wool color in sheeps. The allele for white wool (TT) is dominant over the allele for spotted wool (tt). This means that a sheep with an heterozygous genotype (Tt) will be white-wooled.

In this cross, 10 purebred white wool sheep (TT) are crossed with 10 spotted wool sheep (tt). This will give rise to all offsprings with heterozygous genotype: Tt (see attached image for punnet square). Since, white wool (T) is dominant, all the offsprings will have a white wool and none i.e. 0 will have a spotted wool.

3 0
2 years ago
Lancelets and tunicates are two groups of chordates. classify each statement as applying to lancelets, tunicates, both lancelets
Alenkinab [10]
Characteristics of Lancelets:
Small
Elongated
Marine invertebrate
Lacks a jaw
No sense organs
Has a notochord
Example: Lamprey

Characteristics of Tunicates:
Marine invertebrate
Has an outer coat that is rubbery or hard
Has two siphons
Examples: sea squirts, salps

I hope this is the answer that you were looking for.
7 0
3 years ago
Drinking too much water during exercise can cause a condition in which the concentration of sodium in the blood is lower than no
OlgaM077 [116]

The right answer is Cells shrivel as water moves out of them.

Water intoxication (hyperhydration) occurs when too much water consumption causes a decrease in the concentration of electrolytes in the blood, partly because the electrolytes are eliminated in excessive amounts, on the other hand by increasing blood volume without sufficient electrolytes. When the intercellular (extracellular) medium is too diluted relative to the intracellular medium, the osmotic pressure induced by this difference can cause the cells concerned to explode (the cell wall ruptures under pressure), in the first place the nerve cells, which causes disorders brain that can be severe or even fatal.

6 0
3 years ago
Read 2 more answers
Describe the two main stages of photosynthesis in general terms
zhenek [66]
There are 2 stages in photosynthesis
light stage and dark stage
light stage takes placein the grana because there's presence of chlorophyll. 2 reactions take place here.
1. photolysis of water where water molecules are split into hydrogen ions and oxygen gas in presence of chlorophyll and oxygen gas. the oxygen gas is released into the atmosphere but hydrogen ions are used in dark stage.
2. formation of adenosine triphosphate which is formed by combination of adenosine diphosphate and an inorganic phosphate in presence of light. this adenosine triphosphate is also used in dark stage
dark stage is a light independent stage which takes place in the stroma. energy is provided by adenosine triphosphate formed in the light stage. this stage involves tge combination of carbon(iv)oxide and hydrogen ions to form a simple carbohydrate and a water molecule. this process is known as carbon(iv)oxide fixation which is the reduction of carbon(iv)oxideby hydrogen ions using adenosine triphosphate energy to form a simple carbohydrate.
This simple carbohydrate is changed to glucose for use in the plant or to starch for storage
6 0
3 years ago
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