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Annette [7]
3 years ago
6

Some types of gene are more highly conserved than others since their pathways or phenomena are fundamental to the growth and pro

liferation of all cells, including bacteria, and thus are likely to be highly conserved from species to species. For each of the following pairs of gene functions, choose the one that is more likely to be highly conserved.A. genes involved in sexual reproduction / genes involved in sugar metabolismB. DNA replication / developmental pathwaysC. hormone production / lipid synthesis
Biology
1 answer:
Dmitriy789 [7]3 years ago
4 0

Answer: Sugar metabolism , DNA replication  and lipid synthesis.

Explanation:

The pathways or the phenomenon is very fundamental that takes place in all the living organisms.

These processes are fundamental to life and is vital for the growth and development of the organism. The cell proliferation and growth is also very essential in case of bacteria.

hence, these processes are highly conserved from one species to another species.

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raketka [301]
I think the answer is Segregation
6 0
3 years ago
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Read each of the sentences that describe a phase of meiosis. Place each sentence into the correct box.
Allushta [10]

Answer:

prophase 1(Homologous chromosomes pair to form a tetrad.

prophase 1(Crossing-over may occur between the non-sister chromatids).

Metaphase 1 (Homologous chromosomes line up at the center of the cell.)

Anaphase 1 (Homologous pairs separate and move towards opposite ends of the cell)

Telophase 1 (A nuclear membrane forms and cytokinesis follows).

Metaphase 2 ( The haploid number of duplicated chromosomes line up at the metaphase plate.

Anaphase 2 (Sister chromatids separate and become daughter chromosomes that move to the poles)

Meiosis 2: Four haploid daughter cells are formed that are not genetically identical.

Explanation:

Meiosis is a type of cell division that gives rise to gametes ( offsprings). This type of cell division occurs only in the reproductive organs. A diploid cell has two sets of chromosomes: one from the female parent and the other one from the male parent. When the diploid cell undergoes meiosis, the chromosome replicate once and the nucleus and cell duplicate twice giving rise to four haploid gamete cells.

The phases of meiosis occurs in two step divisions. Homologous pairs separate during the first round cell division which occurs in MEIOSIS 1 while the sister chromatids separate in the second nuclear division called MEIOSIS 2.

In each round of division, cells go through four stages: PROPHASE, METAPHASE, ANAPHASE, and TELOPHASE. The specific events that occur in these stages are already listed in the above answer.

Generally, at the start of meiosis, each member of a homologous pair of chromosomes, which are made up of two chromatids, moves to lie side by side. While they are thus paired, genetic material is exchanged between the chromatids. This is known as CROSSING OVER.

When the nucleus divides for the first time, the chromosomes in a given pair( not the chromatids) separate and move to opposite ends of the cell. This results in only half the number of chromosomes going to each daughter cell.

During the second nuclear division, the chromatids separate and move to opposite ends of each daughter cell giving rise to four gamete cells, each with a haploid number of chromosomes.

7 0
3 years ago
Read 2 more answers
which statement describes what most likely occurs when I Compass is placed next to a simple circuit made from Battery, a light b
Arte-miy333 [17]
I believe the statement would be that, A magnetic field created by the electric current causes the compass needle to move. 
An electric current through a conductor creates a magnetic field,such that when a charged particle such as an electron, proton, or ion is in motion, magnetic lines of force rotate around the particle. Since current moving through the wire consists of electrons in motion, there is a magnetic field around the wire, which causes the compass needle to deflect. 
5 0
3 years ago
Can you identify the ploidy of different structures? drag the terms on the left to the appropriate blanks on the right to comple
Leni [432]

Answer:

1. The gametophyte generation is haploid.

2. The embryo is diploid.

3. The megaspore is haploid.

4. The sporophyte generation is diploid.

Explanation:

1. Gametophyte- The gametophytic generation is the structure which produces gametes in the plant. Since the gametes are haploid, therefore, the gametophyte us considered the haploid.

2. Embryo- The embryo is formed after the fusion of fertilization when zygote develops, therefore, is considered diploid.

3. Megaspore- the big size spore which is formed from by the meiotic division of the megasporocyte, therefore, is considered haploid.

4. Sporophyte- the sporophyte generation develops from the embryo which is diploid therefore is considered diploid.

8 0
3 years ago
Which of the following describes the nervous system integrative function? A. responds to stimuli by gland secretion or muscle co
Verdich [7]

Answer:

B. analyzes sensory information, stores information, makes decisions

Explanation:

The receptors sense the changes or stimuli. The sensory neurons of the nervous system deliver this sensory information to the processing center, that is, to the central nervous system. The central nervous system serves to store the information and analyze it to determine the best suitable response. The ability of the nervous system to the store and process of sensory information to make the effector organs to exhibit the best response represents its integrative function.

5 0
3 years ago
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