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3 years ago

How does sexual reproduction contrubute to the quantity of genetic diverity among individial?

1 answer:

7 0

The process of sexual reproduction involves two parents, each contributing one gamete. Gametes are produced
by a process called meiosis, which starts by the duplication of the chromosomes, followed by two rounds of cell divisions and halving of the chromosome number. Gametes have half the chromosome number of other adult
cells of an organism.

A key feature of meiosis is the exchange of chromosome pieces which occurs in the first division of this process, called recombination or crossing over. Recombination is a very important source of genetic variation between individuals of sexually reproducing species, and the driving force for the process of natural selection.

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What is the role of ATP when large molecules need to be transported across the cell membrane against the concentration gradient?

Anon25 [30]

Answer:

b. the bond between the phosphate groups is broken to release energy

Explanation:

Phosphate groups are negatively charged => there is a pull between the two groups

=> it's easy to break this bond & ATP is unstable

=> ATP has a lot of free energy

breaking the bond between phosphate groups makes the molecules more stable (aka contains less free energy)

=> delta G <0

=> breaking this bond releases energy

the energy released by ATP is then used to transport large molecules against the concentration gradient

6 0

4 years ago

Which of the following describes cellular respiration?

KengaRu [80]

Glucose + oxygen -> carbon dioxide + water + ATP

The reactant are produced by plants. Once the oxygen go through cellular respiration it will turn into the following product. It will cycle again and again.

8 0

3 years ago

The two tiny structures located in the cytoplasm near envelope that aide in cell division are called

Gekata [30.6K]

Membrane ;) nothing much to explain

4 0

4 years ago

Read 2 more answers

Which of the following best describes the process of transcription during protein synthesis?

jonny [76]

Answer:

The answer is 'D'. Transcription is the process by which a single stranded mRNA is formed from the double stranded DNA.

Explanation:

The central machinery of biology involves three processes- replication, transcription and translation. The process by which DNA doubles itself is called replication. In translation, protein is formed from the messenger RNA or mRNA. The major steps involved in transcription are:

Initiation
Elongation
Termination

In the process of translation, amino acids bind together in the ribosome to form a polypeptide chain.

8 0

4 years ago

Is double-stranded:Is double-stranded

Brrunno [24]

Answer:

DNA is double stranded? if that is your question.

Explanation:

4 0

3 years ago