1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
N76 [4]
3 years ago
11

Pls help!!! 50 POINTSSSSSSSs

Biology
2 answers:
Jobisdone [24]3 years ago
7 0

Answer:

1. homologous pair

2. Interphase

3. Meiosis

4. Metaphase I

5. Metaphase II

Explanation:

1. Homologous chromosomes are similar but non-identical chromosomes received from each parent. The pair of chromosomes are similar in the sense that they contain the same genes but non-identical because they may contain different alleles. Each pair is contributed by each parent.

2. Interphase is regarded as the resting stage of the cell cycle. It is the stage where the cell is not dividing but rather preparing for the next round of division, hence, it is the between stage of two successive divisions. It consists of three stages G1, S and G2 stages. These three stage generally involves cell enlargement, DNA replication, and organnelles replication etc.

3. Meiosis is a kind of division that results in four daughter cells with each having a reduced number of chromosomes (by half) as the parent cell. Meiosis is the cell division employed by sexually-reproducing organisms to produce gametes (sperm and egg). Meiosis also increases the chance of genetic diversity due to the crossing-over or recombination that occurs in its prophase stage.

4. Since meiosis reduces the chromosomal number, it occurs in a two-step division process viz: Meiosis I and II. In the prophase stage of meiosis I, homologous chromosomes from each parent lies side by side to form a TETRAD or BIVALENT structure. These TETRAD structure is later aligned at the equator of the cell by the spindle microtubules. Note that, homologous chromosomes separate during meiosis I.

5. In meiosis II, sister chromatids, which are replicated chromosomes align at the equator of the cell during the Metaphase stage. This makes meiosis II similar to mitosis because sister chromatids are involved. Note that, sister chromatids separate during meiosis II.

LiRa [457]3 years ago
5 0

Correct matches are:

1. pair of identical chromosomes (chromosomes that contain the same genes) from each parent, which all organisms produced by sexual reproduction receive -- Homologous pair

2. period between two periods of mitosis -- Interphase

3. the process involving the division of the nucleus in a reproductive cell; cell division in which the daughter cells have fewer chromosomes than the parent cell; responsible for genetic recombination -- Meiosis

4. the stage in the first meiotic division in which the homologous chromosomes line up as a pair, forming a tetrad of chromatids at the equator of the cell -- Metaphase 1

5. the stage in the second meiotic division in which the chromatid pair lines up at the equator of the cell -- Metaphase 2

You might be interested in
According to the Punnett square, offspring from these two parents have a ____________ chance of inheriting two b alleles. Indivi
aliina [53]

Explanation:

50%; homozygous recessive; phenotype

According to the Punnett square, offspring from these two parents have a <u>50%</u>chance of inheriting two b alleles. Individuals that inherit two b alleles are <u>homozygous recessive </u>. Inheriting two b alleles confers the <u>phenotype</u> of blue eyes.

Inheritance describes the way in which certain traits are passed onto offspring of sexual reproduction. For instance, co-dominance, both of a gene's alleles are present, and notable in the phenotype.

The nucleus is a large membrane-bound organelle that houses the genetic information, DNA, in the cell. Sequences of DNA make up genes which can have different forms called alleles and comprise the genotype. DNA is transcribed into mRNA and later translated into amino acids which are linked together by rRNA to form proteins. These proteins, when expressed, are referred to as an organism's phenotype.

Learn more about transcription at brainly.com/question/11339456

Learn more about DNA and RNA brainly.com/question/2416343?source=aid8411316

Learn more about proteins and carbohydrates at brainly.com/question/10744528

#LearnWithBrainly

3 0
3 years ago
Which of the following is TRUE of a cell membranes?
adoni [48]

Answer:

B, C, Dand E are all correct

Explanation:

Why B is correct- The cell membrane, also known as the plasma membrane, is a double layer of lipids and proteins that surrounds a cell and separates the cytoplasm (the contents of the cell) from its surrounding environment. It is selectively permeable, which means that it only lets certain molecules enter and exit.

Plants, animals, and bacteria have a cell membrane. Why d is correcect

Why C is correct- The cell membrane is not a solid structure. It is made of millions of smaller molecules that create a flexible and porous container. Proteins and phospholipids make up most of the membrane structure.

Why E is correct- The plasma membrane is primarily composed of phospholipids arranged in a bilayer, with the hydrophobic tails on the interior of the membrane, and the hydrophilic heads pointing outwards

Why A Is Not correct- It is very fragile and its role is to hold the cell together and to help control what substances can get in and out. It is partially permeable, allowing only some substances to pass through it. The membrane has a complex structure consisting of a phospholipid bi-layer and different types of proteins.

4 0
3 years ago
Communication and transportation have improved as a result of scientific advancements
Sladkaya [172]

True.  Many innovators and inventors have used new scientific methods to develop and improve communication and transportation devices in many ways.  They were able to either make them faster or more fuel efficient.  They have also given rise to new ways to communicate such as the internet and have developed devices that make it easier for people to come together.

7 0
3 years ago
Read 2 more answers
Select the best answers from the drop-down menus. Brushing and flossing one’s teeth regularly prevents . It is possible to inher
worty [1.4K]

Answer:

gingivitis

celiac disease

gastritis

diverticulitis

Explanation:

5 0
3 years ago
Which organism impacts their environment the most?
Vlad [161]

Explanation:

What environment is it?

4 0
3 years ago
Other questions:
  • Which of the following roots mean the same thing?A. arthr/o and angi/oB. cardi/o and vascul/oC. enter/o and gastr/oD. hem/o and
    12·1 answer
  • Which pair of atoms will form an ionic bond?
    5·2 answers
  • What two pieces of information are needed to determine ocean depth through echo sounding?
    5·2 answers
  • Some types of algae live inside coral. The algae provide the coral with nutrients. The coral provides the algae with shelter. Wh
    7·2 answers
  • Homeostasis refers to
    6·1 answer
  • Two of the six Kingdoms are Prokaryotic, which means that their cells have no nucleus. These two kingdoms are Eubacteria and Arc
    8·2 answers
  • What type of species is most likely to lead to extinction of another species? a Invasive species b Native species c Genetically
    5·1 answer
  • Please help! I am giving lots of points for this.
    15·1 answer
  • What is the purpose of inserting a target gene into bacteria?
    12·1 answer
  • How does cell division occur in prokaryotes?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!