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
hram777 [196]
3 years ago
8

What is the responsibility of a scientist?

Biology
1 answer:
julsineya [31]3 years ago
4 0
The answer is A. To answer scientific questions accurately

You might be interested in
In Drosophila, vestigial (partially formed) wings (vg) are recessive to normal long wings (vg+) and the gene for this trait is a
Marina CMI [18]

Answer/ Explanation:

a. The genotype of a homozygous white eyed long winged female would be Vg+Vg+XrXr. We denote the white allele as recessive (r) because the XY male only has one copy and yet has red eyes, so the red eye trait (R) must be dominant. A homozygous red eyed vestigial winged male would have be VgVgXRY. The possible gametes for the female are Vg+Xr only. For the male, the possible gametes are VgXR or VgY

The attached punnett square shows the results of the cross. The females will all be Vg+VgXRXr. The males will all be Vg+VgXRY (must inherit Y from father). That means they will all  have normal length wings, the males will have white eyes and the females will have red eyes.

b. The F2 flies arise from intercrossing the F1, so the cross will be Vg+VgXRXr x Vg+VgXRY. The possible gametes for the mother are: Vg+XR, Vg+Xr, VgXR or VgXr. The possible gametes for the father are Vg+Xr

, Vg+Y

, VgXr

, VgY

. The attached punnet square shows this cross. The ratio of the phenotypes will be 6:6:2:2, or 3:3:1:1 (long-winged red eye: long-winged white eye: vestigial wing red eye: vestigial wing white eye), genotypes shown in the attachment.

c. F1 cross back to the mother would be Vg+VgXRY x Vg+Vg+XrXr. The genotypes are shown in the attached punnet square. The offspring will all be long-winged with white eyes. The F1 to the father would be Vg+VgXRXr x VgVgXRY. The ratio would be 3:3:1:1 long-winged red eye: long-winged white eye: vestigial wing red eye: vestigial wing white eye

Download docx
7 0
3 years ago
Knowing that the lava from the ring of fire has
masha68 [24]

Answer: Granite

Explanation:

hope it helps

6 0
3 years ago
Domestic cats have 38 chromosomes in their diploid cells. If a diploid cat cell enters meiosis, how many chromosomes and double-
sdas [7]

Answer:

Meiosis is a reduction division of diploid cells.(2n) Chromosomes numbers are reduced with each successive division stages  of meiosis 1 and 2, to haploid(n).

Cats  have  38 diploid  somatic (body)chromosome (2n) in the somatic cells  and are reduced to 19  new   varied haploid cells (n) of chromosomes in the gametes.

In cats, as in other mammals, during spermatogenesis in (seminiferous tublule of testis) and oegensis(in the ovaries);<u>meiotic  reduction division</u> reduced the diploid  somatic chromosomes to haploid chromosomes  in  sex gametes.

Therefore 38 chromosomes will be in  the somatic chromosomes, while the sex gametes, with double-helical molecules of DNA, at the end of meiosis II will  have 19 chromosomes, half of the somatic chromosomes.

Explanation:

3 0
3 years ago
Why is it necessary for the genetic material in a cell to exist in chromatin form during normal cellular activity, and not in ch
miskamm [114]
D- During interphase, when the cell is not dividing, chromatin is less tightly packed compared to our chromosomes, which allows transcription to occur. 
6 0
3 years ago
Read 2 more answers
The elements potassium (K) and chlorine (CI) can form an ionic bond. Which of the following
musickatia [10]

Answer:

As chlorine has 7 valence electrons, it tends to form bonds to gain one electron (to get a full valence shell of 8).On the other hand, potassium has one valence electron, so it tends to lose this electron to other atoms (and

become a cation)

8 0
3 years ago
Other questions:
  • BRAINLIESTTTT ASAP!!!!!!
    8·1 answer
  • The bonds in molecules of monosccharides store
    5·1 answer
  • Does a virus grow or not
    7·2 answers
  • Who was Francis Crick?
    5·1 answer
  • Select all options that are CARNIVORES (organisms who get energy by eating ONLY animals/meat). *
    8·1 answer
  • Which of the following genotypes is homozygous dominant?
    15·1 answer
  • In order for a cell to remove waste, those materials must pass through which cell structure? A. chromosomes B. mitochondria C. c
    13·1 answer
  • Describe two ways that humans influence the cycling of matter in ecosystems.
    5·1 answer
  • If humans replace the forest with a factory, how will this affect the carbon cycle in the
    7·1 answer
  • WHAT MIGHT HAPPEN IF<br> ALL THE HERBIVORES IN<br> A FOOD WEB<br> DISAPPEAR?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!