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2 years ago

Function of the rod cellsResponsible for vision at low light levels

Biology

2 answers:

Darina [25.2K]2 years ago

5 0

Answer:

Rods are responsible for vision at low light levels (scotopic vision). They do not mediate color vision, and have a low spatial acuity. Cones are active at higher light levels (photopic vision), are capable of color vision and are responsible for high spatial acuity. The central fovea is populated exclusively by cones.

mariarad [96]2 years ago

5 0

Answer:

There are 3 types of cones which we will refer to as the short-wavelength sensitive cones, the middle-wavelength sensitive cones and the long-wavelength sensitive cones or S-cone, M-cones, and L-cones for short.

The light levels where both are operational are called mesopic.

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A strain of a cereal grain can be either dark tan, medium-dark tan, medium tan, light tan, or cream colored. When a dark tan and

denis-greek [22]

Answer:

The correct answer is - 2 genes.

Explanation:

The number of genes involved in the coloration of the strain of cereal grain, could be either dark tan, medium-dark tan, medium tan, light tan, or cream-colored if all F1 are medium tan when crossed a dark tan crossed with cream-colored, can be calculated as follow:

suppose there are only two gene - TT dominant over tt and CC dominant over cc

then the cross would be - RRCC - rrcc

gametes - RC and rc

Cross F1: RrCc

Self cross in F2:

offspring by Punnet cross are:

RRCC -->1/16

RRCc, RrCC .---> 4/16

RrCc, RRcc, rrCC--->6/16

rrCc, Rrcc--->4/16

rrcc ----> 1/16

thus, the correct answer is 2 genes

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2 years ago

What is the purpose of vaccines?

kondaur [170]

To help your immune system prepare for diseases

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2 years ago

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What structure quickly shoots water out to propel a mollusk forward in water? radula coelom trochophore siphon

ludmilkaskok [199]

<span>The correct answer is siphon</span>

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2 years ago

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Function of graffian follicle <br>

Diano4ka-milaya [45]

Answer:

It provides for the maturation and release of a fertilizable oocyte

Explanation:

let me know if you have any questions

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2 years ago

AFTER DNA replication is complete, a cell is immediately in phase ____ of the cell cycle

bulgar [2K]

Answer: B) G2

Explanation: G1) first gap phase; the cell grows larger and organelles are copied

S) synthesis phase; the cell synthesizes a complete copy of the DNA in its nucleus

G2) second gap phase; the cell grows more, makes proteins and organelles, and begins to reorganize its contents in preparation for mitosis

M) mitosis phase; the cell divides its previously-copied DNA and cytoplasm to make two new, identical daughter cells.

So DNA replicates in S phase but then it moves to G2

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3 years ago