@RE NION RENTCafé × (@Apartmentsfo\' Rent &FX; × LxCh 12-13 Genetics wconnectmhe

Question

@RE NION RENTCafé × (@Apartmentsfo' Rent &FX; × LxCh 12-13 Genetics wconnectmheducation.com/flow/connect htm sda?Adica blogs ¢ Field of stope D Special. Orline Sur enetics ? D strength and condi KER?D ISTOR Search Resu Help Seve & ?.it Subní, Sex chromosomes in mammals mammals is true or false Indicate whether each of the following statements about sex chromosomes in involves inactivation of the Y chromosome in males in order to equalize gene expression between the sexes. (Click to select) 02 One of the X chromosomes in each cell of a female is inactivated early in embryonic development, before the embryo's sex is determined. (Click to select) 03 in a female, the same × chromosome is inactivated in all cells (Clck to seed 04 i a temaie is heserozygous for an Xinked teat some of her celis will xpress one allele and some the other o5 In males, the inactivated and highly condensed Y chromosome is visible as an intensely staining Barr body attached to the nuc in a genetic mosaic. (Click to select) 05. In males, the i membrane. (Click to select) 06 Calico cats are heterozygous for alleles on the X chromosome that produce either black fur or orange fur. (Click to select) 07 In calico cats, whether the fur in a particular area is black or orange depends on which of the two X chromosomes is inactivated (Click to select 08 Only females can be calico cats. (Click to select) 5 8 9

Explanation / Answer

1.False. Dosage compensation involves inactivation of one of the X chromosome

2.True.

4.False,the female might be carrier also, without expression.

5.False,The   inactivated X chromosome condenses into a compact structure called Barr body.

6.True. Females are heterozygous at a locus that produces a patchwork of orange and black.

7. True.

8.True. This is because, only the X chromosomes determine the coat color and the Y chromosome determines the sex. Y chromosome has nothing to do with coat colors.T o produce a calico, one of the X chromosome must contain the black gene and the the other must be the orange gene.Only if both of these are present, a calico is produced, which always is a female.

Related Questions

Navigate

• Browse (All)
• Browse #
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.