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2 years ago

Matching pairs of chromosomes from the parents are called

Biology

1 answer:

Katyanochek1 [597]2 years ago

4 0

The answer is homologous chromosomes.

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What is Nondisjunction and when does it happen?

dimaraw [331]

Answer:

I is when two or more chromosomes fail to separate, which makes daughter cells with abnormal amounts of chromosomes

Explanation:

Your welcome.

5 0

2 years ago

As you travel from the surface of the earth up through the atmosphere into outer space, the gases become.A) more dense.B) less d

IgorC [24]

B: less dense hope this helps

4 0

3 years ago

Read 2 more answers

How is enthalpy used to predict whether a reaction is endothermic or exothermic?

Radda [10]

Answer:

$329.48 KJ/mol$ heat is released by the combustion of $2 mol$ of methane

Explanation:

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

$2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)$

$\Delta H \ reaction=[ 2(\Delta HfCO_2)+ 4(\Delta HfH_2O)]-[2(\Delta HfCH_4)+4(\Delta HfO_2)]$

= $2 ( -(393.5 KJ)/mol)-[2( -74.6 KJ/mol)+4(-241.82 KJ/mol)]$

$= -787 KJ/mol-[ -149.2 KJ/mol-967.28 KJ/mol]$

$= -787 KJ/mol+1116.48 KJ/mol$

$=329.48 KJ/mol$

In this question, the enthalpy of formation has positive value and hence the reaction is endothermic in which the heat is released.

3 0

2 years ago

How is atmospheric nitrogen made available to plants and animals?

Sphinxa [80]

Nitrifying bacteria gets nitrogen from the air and turns it into nitrogen that is available for plant use. This can be seen in the nitrogen cycle which may be useful to you

3 0

2 years ago

How can a refute hypothesis lead to a new investigation

IrinaVladis [17]

A refute hypothesis is a hypothesis that has been refused, not accepted.

When a hypothesis is refused, the scientists that proposed it will try to correct it or to create a similar more applicable one, and that is how new investigations could occur in this case.

Hope it helped,

BioTeacher101

6 0

3 years ago