Answer: the name used is polytene chromosomes.
Explanation:
Polytene chromosomes are produced when repeated rounds of deoxyribonucleic acid (DNA) replication without cell division forms a giant chromosome, they have thousand of DNA strands and provides high level of function in the salivary glands.
At interphase, polytene chromosomes are seen to have distinct thick and thin banding patterns, these bands are of 2 types, the dark band (dark stained,
contains more DNA and less RNA) and the interband (light stained, more RNA and less DNA). The bands enlarge and forms a swelling called puff in certain times, the puffing (which is the formation of puff) is caused by the uncoiling of individual chromomeres in a band. The puffs indicate the site of active genes where mRNA synthesis takes place. These distinct banding patterns are used to study the function of genes in transcription because they permit high level of gene expression.
External fertilization
In this type of fertilization, the female lays numerous eggs and they are fertilized externally by the males that ‘pours’ its sperm on the eggs.
Explanation:
While laying of many eggs gives an increased chance of diversity in the population, many offspring don't make it to maturity due to low parent care. There is, therefore, more wastage of reproductive energy compared to internal fertilization.
On the other hand, in internal fertilization, the egg is fertilized inside of the female and develops into a young organism before it is birthed. Even though there are fewer offspring produced, the more parental care they receive gives them an increased chance of survival. There is also low reproductive energy loss.
Learn More:
For more on reproductive strategies check out;
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Answer:
Explanation:
Tissues are shed from the endometrium
During<span> what </span>phase<span> of the </span>cell cycle<span> does </span>cell division occur<span>? </span>S<span> (</span>synthesis<span>). </span>During<span> ... </span>G2<span>, </span>S<span>, G1, M. </span>Cell<span>grows, </span>DNA replication<span>, </span>cell<span> prepares for mitosis, </span>cell division<span> ... of the </span>cell cycle<span>? Interphase- G, </span>S<span>, </span>G2<span>normal </span>cell growth<span>/prep for division.</span>
