4.

Biology

2 answers:

laila [671]3 years ago

8 0

Question for number 4 is C

Nuetrik [128]3 years ago

3 0

Answer:

4. DNA replication occurs before the division of the nucleus.

5. The question is incomplete, the diagram of the question has been attached as an image. The correct answer is meiosis.

6. Ovary cells.

Explanation:

QUESTION 4:

Before any cell undergoes division; whether meiosis or mitosis, its DNA must be replicated or duplicated in order to ensure that each daughter cell receive the correct number of chromosomes. This process of DNA replication involves the unwinding of the double-stranded DNA by HELICASE, and the synthesis of a new DNA strand.

N.B: Meiosis occurs only in reproductive cells.

QUESTION 5:

The diagram has been attached. It displays a female reproductive system showing the fallopian tube where the female gamete (ovum/egg) passes. The egg which is labelled X is produced by the ovary during meiosis.

Meiosis is the cell division that results in daughter cells (gametes) with each having their chromosome number reduced by half. i.e. a diploid (2n) female will produce haploid eggs (n)

QUESTION 6:

Meiosis occurs only in reproductive cells. It is a cell division that gives rise to gametes or sex cells used during reproduction. Ovary is the female reproductive organ that produces the female gamete (egg). Meiosis occurs in the diploid germ cells of the ovary and results to haploid cells called egg or ovum.

You might be interested in

Based upon data from the Human Microbiome Project (HMP), define microbial antagonism and discuss how the various microbial popul

Xelga [282]

Answer:

Suppression of one microorganism by another microorganism.

Explanation:

Microbial antagonism is the suppression of one microorganism by another microorganism. For every organism, God creates another organism in order to control its growth and population. So harmful microorganisms that cause diseases in human can be controlled by another beneficial microorganism. If the beneficial microorganisms are removed from the environment, the harmful microorganisms causes more damage to human and their property.

4 0

3 years ago

In a particular case of secondary succession, three species of wild grass all invaded a field. By the second season, a single sp

Alex17521 [72]

In a particular case of secondary succession, three species of wild grass all invaded a field. By the second season, a single species dominated the field and the other two species had a lower relative abundance. A possible factor contributing to the abundances of these species in this example of secondary succession is inhibition

<h3>What is inhibition ?</h3>

In psychology, inhibition is the conscious or unconscious restraint or restriction of a process or behavior, particularly of urges or wants. The ability to inhibit oneself from acting on some impulses, such as the desire to hit someone in a fit of rage, and the ability to postpone the enjoyment of enjoyable activities, all serve important social functions. Conscious inhibition occurs frequently in daily life and appears whenever two opposing urges are felt (e.g., the desire to eat a rich dessert versus the desire to lose weight).

According to psychoanalytic theory, inhibition serves as a mediator between the superego (the conscience) and the id (primitive desires). Taboos are socially imposed inhibitions that are raised to the level of prohibition, such as those against incest or murder.

To learn more about inhibition from the given link:

brainly.com/question/13661646

#SPJ4

5 0

1 year ago

.In women, aging becomes a significant risk factor for heart disease after the age of:

Gennadij [26K]

Answer: option b - 55

Explanation:

Menopause signifies the time in a woman's life when menstruation ends, usually BETWEEN age 45 - 55.

And because of the crucial role played by Oestrogen in menstruation, its LOSS increases the RISK of HEART DISEASE seen in women AFTER MENOPAUSE .

8 0