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liberstina [14]
3 years ago
14

When genes in the same location on homologous chromosomes vary slightly in sequence with respect to each other, the genes are ca

lled?
Biology
1 answer:
Svetach [21]3 years ago
4 0
In meiosis? Tetrads maby? When two homologus chromosomes do crossing over they're called tetrads so..
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You have a 15kb plasmid. EcoRI cuts the plasmid into 7kb and 8kb pieces, and BamHI cuts the plasmid into 1kb and 14kb pieces. If
Harman [31]

Answer:

a. Bands at 1kb, 6kb and 8kb

Explanation:

The EcoRI and BamHI are the restriction enzymes which cut the DNA sequence especially a plasmid at specific sites called the restriction sites.

The restriction enzymes produces bands of specific length therefore these restriction enzymes are used to estimate the approximate length of the DNA.

In the given question, the

1. EcoRI- produces two strands of 7 kb and 8 kb

2. BamHI- produces two strands of 1kb and 14kb

This shows that the length of DNA sequence is 15kb

But when the DNA strand are digested with both the enzymes simultaneously then it will produce three bands as:

i) 14 kb can be broken down in 2 bands of 6 kb and 8 kb

ii) 1 kb band is already produced by the Bam HI.

This shows that 1+6+8= 15 kb

Thus, Option-A is correct.

5 0
3 years ago
Question 5 unsaved in a tide pool, 15 species of invertebrates were reduced to 8 after one species was removed. the species remo
sesenic [268]
The species was a keystone species.

Keystone species are the species that ''hold the ecosystem together''.
They have an important role in the trophic networks (food chains) and often they can even afflict changes in the abiotic part of the ecosystem (change the composition of soil, purify the water, lower the effect of the wind etc)
Therefore, when a keystone species is removed it affects greatly the whole ecosystem.
8 0
3 years ago
Which mutation causes either the in conclusion of an extra chromosome and offspring the collection of an entire chromosome
Angelina_Jolie [31]
The answer to the question stated above is non-disjunction. 
6 0
3 years ago
Increasing the volume of air that reaches the alveoli and takes part in gas exchange will cause blood pH to:
sweet-ann [11.9K]

Answer:

Increase

Explanation:

As CO2 enters the blood, most of it is converted to the carbonic acid in a reaction catalyzed by carbonic anhydrase. The carbonic acid dissociates into hydrogen ions and bicarbonate ions. As the H+ concentration increases, the blood pH decreases. Thus, the increased partial pressure of CO2 produces a more acidic environment. Increasing the volume of air that reaches the alveoli and takes part in gaseous exchange will increase the rate of removal of CO2 from the blood. The reduced CO2 levels in the blood would increase the blood pH.

6 0
3 years ago
Giving brainliest. Need helpp
jolli1 [7]

Answer:

animals and plants

Explanation:

4 0
3 years ago
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