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
geniusboy [140]
3 years ago
15

Which statement about the human genome is true?

Biology
1 answer:
IrinaVladis [17]3 years ago
4 0
A it contains long stretches of repeated sequences with no known direct function
You might be interested in
What are the three main ways that common ancestry may be shown through homologies
Harrizon [31]

Answer:

Homology is a study of similar characters found in two species because of common ancestry.

Explanation:

1.Morphological homology: Species placed under same taxonomic category exhibit similar anatomical structures.

2.Ontogenetic homology: Species belongs to same taxonomic category embryological similarities

3.Molecular homology: Species show molecular similarities such as DNA,RNA and protein

An example of homology is seen in the skeletal strycture of vertebrates. That is arm of a human,leg of a cat,fin of a whale and wing of a bat.

Download docx
6 0
4 years ago
Match the names of the microscope parts in column A with the descriptions in column B. Place the letter of your choice in the sp
mezya [45]

Answer:

Adjustment knob (coarse) ---> Causes stage (or objective lens) to move upward or downward

Arm ---> Serves as a handle for carrying the microscope

Condenser ---> Concentrates light onto the specimen

Eyepiece (ocular) ---> Contains a lens at the top of the body tube

Field of view ---> Circular area seen through the eyepiece

Iris diaphragm ---> Increases or decreases the light intensity

Nosepiece ---> Part to which the objective lenses are attached

Objective lens system ---> After light passes through the specimen, it next enters this lens system

Explanation:

The microscope is an essential equipment used in science laboratories to view objects which are too small to be seen by the naked eye. Also certain processes which occur at the microscopic level can only be observed using a microscope.

There are many different types of microscopes. The compound light microscope is the one most commonly used in biological laboratories to view tissues and cells of organisms. It uses visible light which passes through two separate lens to magnify the image produced of a specimen.

The various parts of compound light microscope and their respective functions are given below:

Adjustment knob (coarse) ---> Causes stage (or objective lens) to move upward or downward

Arm ---> Serves as a handle for carrying the microscope

Condenser ---> Concentrates light onto the specimen

Eyepiece (ocular) ---> Contains a lens at the top of the body tube

Field of view ---> Circular area seen through the eyepiece

Iris diaphragm ---> Increases or decreases the light intensity

Nosepiece ---> Part to which the objective lenses are attached

Objective lens system ---> After light passes through the specimen, it next enters this lens system

Stage ---> Platform that supports a microscope slide

Stage (slide) clip ---> Holds a microscope slide in position

8 0
3 years ago
When a muscle fiber is sufficiently stimulated, it will contract to its fullest extent or not at all?
arlik [135]
A muscle fiber will contract completely
5 0
4 years ago
Read 2 more answers
Transcription in eukaryotes requires which of the following in addition to Rna polymerase
Artist 52 [7]

Answer:

several transcription factors (TFs)

3 0
4 years ago
With help from other enzymes, DNA polymerase acts to join nucleotides together to form a new strand of DNA. During normal DNA re
Licemer1 [7]

Answer:

I think the answer is B

7 0
4 years ago
Read 2 more answers
Other questions:
  • Which of these is associated with El Nino<br><br>​
    5·2 answers
  • 22) ______________ fats, such as olive oil and sesame oil, are produced in plants and are liquid at room temperature.
    6·1 answer
  • Can there be a bias in a secondary source
    11·2 answers
  • Hemophilia is a condition in which blood does not clot naturally, and a person with hemophilia could bleed to death if injured.
    5·1 answer
  • Free palmitate is activated to its coenzyme A derivative (palmitoyl-CoA) in the cytosol before it can be oxidized in the mitocho
    13·1 answer
  • How does self-pollination bring more variations in plant?
    14·1 answer
  • IS it possible for an airborne pathogen to travel very far
    13·2 answers
  • What are 3 important trends in our solar system?
    7·1 answer
  • Obstetric sonography is a technology that allows doctors and parents to see images of a fetus as it develops in a woman’s womb.
    6·2 answers
  • 1. Why were Asian carp introduced in the United States?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!