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SCORPION-xisa [38]
3 years ago
8

How many sex chromosomes are there​

Biology
1 answer:
a_sh-v [17]3 years ago
6 0

Answer: 2

Explanation: There's X (female) and Y (male).

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1. Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature? ​
jeka94

»» (c) Biological names can be written in any language.

<h3>EXPLANATION:</h3>

➱ Biological names are derived either from Latin language or are latinised. This is because Latin language is a dead language and therefore it will not change in form or spellings with the passage of time.

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3 years ago
Buddhist ideas also spread across water to reach what two places??
NARA [144]

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America and Canada I think

Explanation:

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Explain Gynecomastia in males.
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Gynecomastia is an increase in the size of the mammary gland in men. The condition can occur in one or both breasts. It starts as a small mass under the nipple, which can be sensitive. One breast can be bigger than the other. Its cause is an imbalance between the stimulatory effects of estrogen (female sex hormones) and the inhibitory effects of androgens (male sex hormones) in the breast tissue, when the first ones increase, or the second ones descend.

Gynecomastia is a problem relatively common in the population, and there are three prevalence peaks throughout life:

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Puberty: Gynecomastia in puberty affects mainly young people aged between 10 and 14 years, and is due to the transient and physiological increase in estrogen that occurs at this age.

Elderly: Is due to an increase in fatty tissue with a greater peripheral aromatization ( a process that occurs in adipose tissue and that involves the conversion of androgens into estrogens), a decrease in the production of testosterone by the testes and the use of drugs.

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3 years ago
Uhmmmmmm i need help asap!!! plss and thanks lol
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Answer:

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The while reason we wash fruits and vegetables before consumption is because we need to wash off the pesticides

7 0
3 years ago
Read 2 more answers
You decide to repeat the Meselson-Stahl experiment, except this time you plan to grow the cells on light 14N medium for many gen
Effectus [21]

Answer:

One band of light density and one band of heavy density.

Explanation:

According to conservative model of replication, the original strands do not separate from each other during replication. Hence, after replication the old strands are together and the new strands are together.

Here, cells were grown in 14N medium first so 14N was used for DNA replication and all DNA molecules had 14N. When the cells were transferred to 15N medium, only 15N was available for replication process. New DNA molecules would be synthesised using 15N (15N15N) and old DNA molecules have 14N (14N14N). Hence, in density gradient one band will be of light density (14N14N) and one band will be of heavy density (15N15N).

5 0
3 years ago
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